{"title":"2-Way Articulating Borescope Series – Flexible and Accurate","description":"\u003cp\u003eTwo-way steering handles most of the job. Ralcam's 2-way articulating borescopes bend the camera tip through 210° up and down — enough to clear a bend, angle onto a cylinder wall, or turn into a branch line.\u003c\/p\u003e\u003c!--split--\u003e\u003ch2\u003eWhen 2-Way Articulation Is Enough\u003c\/h2\u003e\u003cp\u003eTwo-way is the most widely used borescope design for a reason. A single lever or wheel controls the tip, so you steer with one hand while you push with the other. For automotive engine checks, drain and pipe runs, and HVAC service, that is almost always the control you actually need — and it costs considerably less than a 4-way joystick platform.\u003c\/p\u003e\u003ch3\u003eSizing\u003c\/h3\u003e\u003cp\u003eCamera diameters run \u003cstrong\u003e5.5 mm, 6.2 mm, and 8.5 mm\u003c\/strong\u003e across this series, on cables from 1 m to 3 m in flexible, semi-rigid, and rigid form. Semi-rigid is the default recommendation: it holds the curve you set, which is what keeps the tip pointed at the cylinder wall instead of sagging into the bore.\u003c\/p\u003e\u003ch3\u003eScreen or phone\u003c\/h3\u003e\u003cp\u003eModels here come both ways — \u003ca href=\"\/en-de\/collections\/borescope-with-screen\"\u003ebuilt-in screens\u003c\/a\u003e from 3.5\" to 5\" for standalone work, or \u003ca href=\"\/en-de\/collections\/iphone-borescope\"\u003eUSB probes\u003c\/a\u003e that turn an iPhone or Android into the display for a lighter kit.\u003c\/p\u003e\u003ch3\u003eWhen to step up\u003c\/h3\u003e\u003cp\u003eIf you need to look back along a surface, sweep a combustion chamber methodically, or navigate a compound bend, the tip has to move left and right too — that is \u003ca href=\"\/en-de\/collections\/4-way-articulating-endoscope\"\u003e4-way articulation\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003eAll probes are IP67 rated with adjustable LED illumination for oily, wet, and dusty work.\u003c\/p\u003e","products":[{"product_id":"f408a-endoscope-camera-android-iphone","title":"Endoscope Camera for Android \u0026 iPhone – Ralcam F408A","description":"\u003ch2\u003eRalcam F408A — Phone-Connected Articulating Borescope\u003c\/h2\u003e\n\u003cp\u003eThe F408A turns your iPhone or Android into a professional inspection camera. Plug the probe into your phone via USB-C or Lightning, open the free app, and you're looking inside an engine cylinder, pipe, or wall cavity in under 60 seconds — no screen to carry, no extra battery to charge.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProbe diameter:\u003c\/strong\u003e 5.5 mm (F405A), 6.2 mm (F406A), or 8.5 mm (F408A) — choose at checkout\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArticulation:\u003c\/strong\u003e 2-Way 180° steering wheel control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResolution:\u003c\/strong\u003e 1280×720 HD with 1\/9\" CMOS sensor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIllumination:\u003c\/strong\u003e 6 adjustable high-lumen LEDs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWaterproof:\u003c\/strong\u003e IP67 — fully sealed against oil, coolant, and water\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable:\u003c\/strong\u003e 1.5 m flexible, tungsten braid reinforced (20,000+ bend cycles)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e iPhone 13 \/ 14 \/ 15 (Lightning and USB-C), Android USB-C, iPad\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e CE, FCC, RoHS\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhere Mechanics Use the F408A\u003c\/h2\u003e\n\u003cp\u003eA gasoline engine mechanic inserts the 6.2 mm probe through the spark plug hole to check piston crown deposits after a misfire code. A plumber pushes the flexible cable around a P-trap to locate a hairline crack without cutting into drywall. An HVAC technician feeds it into a supply duct to confirm whether mold growth has reached the plenum box. In each case, the phone screen serves as the display, the thumb wheel steers the camera tip, and the image is sharp enough to spot a crack 15 mm wide at the tip.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Choose the F408A Over a Built-In Screen Model\u003c\/h2\u003e\n\u003cp\u003eIf you already carry a phone on the job, the F408A adds almost no weight to your kit. The phone screen is larger and brighter than most built-in borescope displays, and photos and videos save directly to your camera roll for easy sharing with clients or warranty claims. For technicians who prefer a standalone unit, the \u003ca href=\"\/en-de\/products\/auto-inspection-camera-n505\"\u003eN505\u003c\/a\u003e (5\" screen, 2-way) or \u003ca href=\"\/en-de\/products\/4-articulating-borescope-f606b\"\u003eF606B\u003c\/a\u003e (4.3\" screen, 4-way) are the next steps up.\u003c\/p\u003e\n\n\u003ch2\u003eIn the Box\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eF408A articulating borescope probe and handle\u003c\/li\u003e\n\u003cli\u003eUSB-C and Lightning adapters\u003c\/li\u003e\n\u003cli\u003eCarrying case\u003c\/li\u003e\n\u003cli\u003eUser manual (EN)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ralcam","offers":[{"title":"8.5mm (0.33in) \/ 1.5m (4.9ft)","offer_id":41881155862624,"sku":"F408A-S1.5M","price":99.99,"currency_code":"USD","in_stock":true},{"title":"6.2mm (0.24in) \/ 1.5m (4.9ft)","offer_id":41881155895392,"sku":"F406A-1.5M","price":104.3,"currency_code":"USD","in_stock":false},{"title":"5.5mm (0.22in) \/ 1m (3.3ft) Rigid Tube","offer_id":42941207281760,"sku":"F405A-R1M","price":189.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/2017\/1616\/files\/f405a-articulating-borescope-for-smartphone-and-iphone-9013058.jpg?v=1764742115"},{"product_id":"ralcam-h406a-iphone-borescope","title":"Smartphone Borescope – Ralcam H406A | 6.2mm Engine Inspection","description":"\u003ch2\u003eRalcam H406A — Detachable Smartphone Borescope\u003c\/h2\u003e\n\u003cp\u003eThe H406A uses the same concept as the F408A — phone as your display, probe as the camera — but adds one critical feature: a \u003cstrong\u003edetachable probe\u003c\/strong\u003e. The articulating cable separates from the handheld controller, so you can switch between probe diameters, replace a worn probe without buying a new unit, or order custom probe lengths for your specific application.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProbe diameter:\u003c\/strong\u003e 6.2 mm (H406A) or 8.5 mm (H408A) — choose at checkout\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArticulation:\u003c\/strong\u003e 2-Way 180° wheel control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResolution:\u003c\/strong\u003e 1280×720 HD with 1\/9\" CMOS sensor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIllumination:\u003c\/strong\u003e 10 adjustable LEDs (6 outer ring + 4 inner fill)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWaterproof:\u003c\/strong\u003e IP67 probe head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable:\u003c\/strong\u003e 1 m standard; 2 m, 3 m, and custom lengths available as variants\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e iPhone (Lightning and USB-C) and Android (USB-C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e CE, FCC, RoHS\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhere the Detachable Design Makes a Difference\u003c\/h2\u003e\n\u003cp\u003eA mobile mechanic running a fleet account needs different probe lengths for different vehicles — a 1 m cable for under-hood engine checks, a 3 m cable for reaching a diesel truck's far cylinder bank. With the H406A, they carry one handheld controller and swap the probe in seconds at the job site. When a probe tip is damaged after 18 months of daily use, a replacement probe costs a fraction of a new unit.\u003c\/p\u003e\n\n\u003ch2\u003eH406A vs. F408A — Which One to Choose\u003c\/h2\u003e\n\u003cp\u003eChoose the \u003cstrong\u003eH406A\u003c\/strong\u003e if you need probe interchangeability, plan to use multiple lengths across different jobs, or want to keep replacement costs low long-term. Choose the \u003ca href=\"\/en-de\/products\/f408a-endoscope-camera-android-iphone\"\u003eF408A\u003c\/a\u003e if you want a simpler one-piece design and primarily work with a single cable length. For a built-in screen option at a similar price point, see the \u003ca href=\"\/en-de\/products\/ralcam-n308s-car-inspection-camera\"\u003eN308S\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eIn the Box\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eH406A \/ H408A articulating probe and controller\u003c\/li\u003e\n\u003cli\u003eUSB-C and Lightning adapters\u003c\/li\u003e\n\u003cli\u003eCarrying case\u003c\/li\u003e\n\u003cli\u003eUser manual (EN)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ralcam","offers":[{"title":"8.5mm (0.33in) \/ 1m (3.3ft)","offer_id":41867846320224,"sku":"H408A-1M","price":119.99,"currency_code":"USD","in_stock":false},{"title":"8.5mm (0.33in) \/ 2m (6.6ft)","offer_id":42407409811552,"sku":"H408A-2M","price":129.99,"currency_code":"USD","in_stock":false},{"title":"8.5mm (0.33in) \/ 3m (9.8ft)","offer_id":42407409844320,"sku":"H408A-3M","price":139.99,"currency_code":"USD","in_stock":false},{"title":"8.5mm (0.33in) \/ Customized","offer_id":42407409877088,"sku":"H408A-C","price":159.99,"currency_code":"USD","in_stock":false},{"title":"6.2mm (0.24in) \/ 1m (3.3ft)","offer_id":41867846352992,"sku":"H406A-1M","price":119.99,"currency_code":"USD","in_stock":false},{"title":"6.2mm (0.24in) \/ 2m (6.6ft)","offer_id":42407409909856,"sku":"H406A-2M","price":129.99,"currency_code":"USD","in_stock":false},{"title":"6.2mm (0.24in) \/ 3m (9.8ft)","offer_id":42407409942624,"sku":"H406A-3M","price":139.99,"currency_code":"USD","in_stock":false},{"title":"6.2mm (0.24in) \/ Customized","offer_id":42407409975392,"sku":"H406A-C","price":159.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/2017\/1616\/files\/h406a-articulating-borescope-compatible-with-android-and-ios-phone-85mm-lens-ip67-waterproof-6628133.jpg?v=1764742115"},{"product_id":"portable-endoscope-n306s","title":"Portable Endoscope – Ralcam N306S | 3.5\" Compact Inspection Camera","description":"\u003ch2\u003eRalcam N306S — Portable Endoscope with 3.5\" Screen\u003c\/h2\u003e\n\u003cp\u003eThe smallest standalone scope in the Ralcam range. A 3.5\" screen, a 6.2 mm probe and a quick-swap battery in a body light enough to hold one-handed for an hour — built for the technician who wants a screen without carrying a 5\" unit around all day.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProbe diameter:\u003c\/strong\u003e 6.2 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArticulation:\u003c\/strong\u003e 2-way, 90° viewing angle, one-button probe lock\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScreen:\u003c\/strong\u003e 3.5\" IPS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResolution:\u003c\/strong\u003e 1280×720, 4× digital zoom\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsertion tube:\u003c\/strong\u003e 1 m rigid tube\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIllumination:\u003c\/strong\u003e High-lumen LED, adjustable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWaterproof:\u003c\/strong\u003e IP67 — water, oil and dust resistant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery:\u003c\/strong\u003e 2200 mAh removable — up to 3 hours, quick-swap\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecording:\u003c\/strong\u003e Photo and video to TF card, up to 32 GB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterface:\u003c\/strong\u003e Multilingual menu\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e CE, FCC, RoHS\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy the Probe Lock Matters\u003c\/h2\u003e\n\u003cp\u003eHold an articulating probe at an angle for thirty seconds and your thumb starts to drift — which is exactly when the photo blurs. The N306S locks the tip at the angle you set, so the image holds still while you take the shot or adjust the lighting. Paired with the 4× zoom, that is what lets a 3.5\" screen show a crack clearly enough to act on it.\u003c\/p\u003e\n\n\u003ch2\u003eN306S vs. N505 — How Much Screen Do You Need\u003c\/h2\u003e\n\u003cp\u003eBoth are 2-way standalone scopes with removable batteries. The \u003ca href=\"\/en-de\/products\/auto-inspection-camera-n505\"\u003eN505\u003c\/a\u003e has a 5\" IPS panel, a 1.5 m cable and a 5.5 mm probe option for tighter access. The N306S is smaller, lighter and less expensive, with a 1 m rigid tube — the right choice when the inspection is short, the access is straightforward, and you will be carrying the tool all day.\u003c\/p\u003e\n\u003cp\u003eFor a middle option with a 4.5\" screen and an 8.5 mm probe, see the \u003ca href=\"\/en-de\/products\/ralcam-f408b-articulating-borescope\"\u003eF408B\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eIn the Box\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eN306S portable endoscope\u003c\/li\u003e\n\u003cli\u003e6.2 mm probe, 1 m\u003c\/li\u003e\n\u003cli\u003e2200 mAh battery\u003c\/li\u003e\n\u003cli\u003eUSB charging cable\u003c\/li\u003e\n\u003cli\u003eCarrying case\u003c\/li\u003e\n\u003cli\u003eUser manual (EN)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ralcam","offers":[{"title":"6.2mm (0.24in) \/ Single Lens \/ 1m (3.3ft) Rigid Tube","offer_id":41810433245280,"sku":"N306-R1M","price":119.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/2017\/1616\/files\/n306-2-way-endoscope-camera-with-6-led-lights-62mm-lens-35-ips-screen-9416850.jpg?v=1764742116"},{"product_id":"ralcam-f408b-articulating-borescope","title":"Portable Articulating Borescope – Ralcam F408B","description":"\u003ch2\u003eRalcam F408B — Portable Articulating Borescope with 4.5\" Screen\u003c\/h2\u003e\n\u003cp\u003eThe F408B is a stand-alone articulating borescope with a large 4.5\" IPS display — bigger than most competitors at this price point. It's designed for mechanics and technicians who want the convenience of a phone-connected scope but prefer to keep a dedicated tool in the workshop rather than plugging into a personal device.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProbe diameter:\u003c\/strong\u003e 8.5 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArticulation:\u003c\/strong\u003e 2-Way 210° wheel control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScreen:\u003c\/strong\u003e 4.5\" IPS LCD, 854×480 px\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResolution:\u003c\/strong\u003e 1080p HD camera\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIllumination:\u003c\/strong\u003e 6 adjustable high-lumen LEDs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWaterproof:\u003c\/strong\u003e IP67 probe head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable:\u003c\/strong\u003e 1 m flexible (semi-rigid option on request)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery:\u003c\/strong\u003e 4000 mAh \/ approx. 4 hours continuous\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecording:\u003c\/strong\u003e Photo and video to TF card (card not included)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e CE, FCC, RoHS\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho Picks the F408B\u003c\/h2\u003e\n\u003cp\u003eThe F408B suits mechanics who frequently inspect larger-bore access points — diesel pre-chamber ports, industrial pipe joints, or HVAC plenum access panels — where the 8.5 mm probe's wider field of view and brighter image are worth the trade-off in access size. The 4.5\" screen is noticeably larger than the 3.5\" display on the \u003ca href=\"\/en-de\/products\/portable-endoscope-n306s\"\u003eN306S\u003c\/a\u003e, making it easier to spot hairline cracks or carbon deposits without leaning in.\u003c\/p\u003e\n\n\u003ch2\u003eF408B vs. N505 — Picking the Right Screen Size\u003c\/h2\u003e\n\u003cp\u003eBoth are 2-way articulating, both have built-in screens, and both run independently without a phone. The key difference: the \u003ca href=\"\/en-de\/products\/auto-inspection-camera-n505\"\u003eN505\u003c\/a\u003e has a 5\" screen and 5.5 mm probe for tighter access, while the F408B has a 4.5\" screen and 8.5 mm probe for wider-bore applications with more light. If probe diameter matters most for your access point, that's the deciding factor.\u003c\/p\u003e\n\n\u003ch2\u003eIn the Box\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eF408B borescope unit\u003c\/li\u003e\n\u003cli\u003eCarrying case\u003c\/li\u003e\n\u003cli\u003eUSB-C charging cable\u003c\/li\u003e\n\u003cli\u003eUser manual (EN)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ralcam","offers":[{"title":"8.5mm (0.33in) \/ 1m (3.3ft) Flexible Cable","offer_id":41867959173216,"sku":"F408B-1M","price":168.0,"currency_code":"USD","in_stock":true},{"title":"8.5mm (0.33in) \/ 2m (6.6ft)","offer_id":42982404456544,"sku":"F408B-2M","price":177.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/2017\/1616\/files\/ralcam-f4b-articulating-borescope-45-hd-engine-camera-9686877.jpg?v=1764742115"},{"product_id":"ralcam-c106-usb-endoscope","title":"USB Endoscope – Ralcam C106 | 6.2mm Flexible Engine Inspection","description":"\u003ch2\u003eRalcam C106 — USB Endoscope for Phone and Laptop\u003c\/h2\u003e\n\u003cp\u003eNo battery to charge, no app to pair. The C106 draws power over USB OTG from whatever it is plugged into, so it works the moment you connect it — and it is the lightest thing in this range to keep in a toolbox for the job you did not plan for.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProbe diameter:\u003c\/strong\u003e 6.2 mm or 8.5 mm — choose at checkout\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArticulation:\u003c\/strong\u003e 2-way, 30 mm steering radius\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResolution:\u003c\/strong\u003e 1280×720\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFocus distance:\u003c\/strong\u003e 15–100 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsertion tube:\u003c\/strong\u003e 1 m flexible snake tube\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower:\u003c\/strong\u003e USB OTG from your phone or laptop — no internal battery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIllumination:\u003c\/strong\u003e High-lumen LED, adjustable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWaterproof:\u003c\/strong\u003e IP67 — water and oil resistant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTransfer:\u003c\/strong\u003e Direct over USB — photos and video save to the connected device\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eThe Case for No Battery\u003c\/h2\u003e\n\u003cp\u003eEvery scope with a screen has a battery that will be flat on the morning you need it. The C106 has none — it borrows power from a phone you have already charged. That also makes it the cheapest way to put a genuine 2-way articulating probe in every van in a fleet, rather than three technicians sharing one good scope.\u003c\/p\u003e\n\u003cp\u003eThe trade-off: you need a free hand for the phone, and you are limited to the 1 m cable. For deeper reaches or hands-free work, a screen model is the better tool.\u003c\/p\u003e\n\n\u003ch2\u003eC106 vs. F408A — Reach and Probe Options\u003c\/h2\u003e\n\u003cp\u003eBoth connect to a phone. The \u003ca href=\"\/en-de\/products\/f408a-endoscope-camera-android-iphone\"\u003eF408A\u003c\/a\u003e adds a 1.5 m cable, three probe diameters down to 5.5 mm, and a rigid-tube option for when the probe needs to hold a shape. The C106 is the simpler, lighter, lower-cost option for straightforward inspections.\u003c\/p\u003e\n\u003cp\u003eIf you want to swap probe lengths without buying a second unit, the \u003ca href=\"\/en-de\/products\/ralcam-h406a-iphone-borescope\"\u003eH406A\u003c\/a\u003e has a detachable probe.\u003c\/p\u003e\n\n\u003ch2\u003eIn the Box\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eC106 USB endoscope with the probe diameter selected\u003c\/li\u003e\n\u003cli\u003eUser manual (EN)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ralcam","offers":[{"title":"6.2mm (0.24in) \/ 1m (3.3ft) Flexible Cable","offer_id":41999772614752,"sku":"C106-1M","price":79.99,"currency_code":"USD","in_stock":false},{"title":"8.5mm (0.33in) \/ 1m (3.3ft) Flexible Cable","offer_id":42405786058848,"sku":"C108-1M","price":69.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/2017\/1616\/files\/C1.webp?v=1764742115"},{"product_id":"ralcam-r406s-endoscope-automotive","title":"Automotive Endoscope – Ralcam R406S | 4.3\" HD Inspection","description":"\u003ch2\u003eRalcam R406S — Automotive Endoscope for Engine Inspection\u003c\/h2\u003e\n\u003cp\u003eThe R406S is built for one job: getting a clear look inside an assembled engine without pulling it apart. A 6.2 mm semi-rigid probe goes in through the spark plug hole or intake port, and the 4.3\" screen puts the cylinder wall, piston crown and valve seats in front of you while both hands stay on the tool.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProbe diameter:\u003c\/strong\u003e 6.2 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArticulation:\u003c\/strong\u003e 2-way, 30 mm steering radius\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScreen:\u003c\/strong\u003e 4.3\" HD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResolution:\u003c\/strong\u003e 1280×720\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFocus distance:\u003c\/strong\u003e 20–100 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsertion tube:\u003c\/strong\u003e 1 m semi-rigid — holds its shape once bent\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIllumination:\u003c\/strong\u003e High-lumen LED, adjustable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWaterproof:\u003c\/strong\u003e IP67 — water and oil resistant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecording:\u003c\/strong\u003e Photo and video to TF card, up to 32 GB\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Semi-Rigid Matters in an Engine Bay\u003c\/h2\u003e\n\u003cp\u003eA fully flexible cable coils on itself the moment it meets resistance — fine in a drain, frustrating when you are trying to push past a valve spring. The R406S's semi-rigid tube holds whatever curve you set, so you can pre-bend it to clear an obstruction on the way in and it stays there.\u003c\/p\u003e\n\u003cp\u003ePaired with the 20–100 mm focus range, that means you can park the tip 30 mm off a piston crown and actually read the deposit pattern rather than guess at a blur. For a shop diagnosing a misfire code, that is the difference between confirming carbon buildup on the spot and booking a teardown to find out.\u003c\/p\u003e\n\n\u003ch2\u003eR406S vs. N308S — Probe Diameter Decides\u003c\/h2\u003e\n\u003cp\u003eBoth are 2-way semi-rigid automotive scopes with built-in screens. The R406S is 6.2 mm — narrow enough for tight spark plug access on smaller petrol engines. The \u003ca href=\"\/en-de\/products\/ralcam-n308s-car-inspection-camera\"\u003eN308S\u003c\/a\u003e offers 8.5 mm at 1600×1200 with 2 m and 3 m cable options, which suits diesel and truck cylinders where the port is wider and the reach is longer.\u003c\/p\u003e\n\u003cp\u003ePick by access point first: resolution is no help if the probe will not fit. If you want a 5\" screen and a battery you can swap mid-shift, see the \u003ca href=\"\/en-de\/products\/auto-inspection-camera-n505\"\u003eN505\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eIn the Box\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eR406S automotive endoscope\u003c\/li\u003e\n\u003cli\u003e6.2 mm semi-rigid probe, 1 m\u003c\/li\u003e\n\u003cli\u003eUSB charging cable\u003c\/li\u003e\n\u003cli\u003eCarrying case\u003c\/li\u003e\n\u003cli\u003eUser manual (EN)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ralcam","offers":[{"title":"6.2mm (0.24in) \/ 1m (3.3ft) Semi-Rigid Cable","offer_id":42405120245856,"sku":"R406-S1M","price":139.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/2017\/1616\/files\/ralcam-r406-2-way-articulating-borescope-with-43-screen-8644992.webp?v=1764742115"},{"product_id":"ralcam-n308s-car-inspection-camera","title":"Car Inspection Camera – Ralcam N308S | 8.5mm Engine Inspection","description":"\u003ch2\u003eRalcam N308S — Car Inspection Camera with 8.5 mm Probe\u003c\/h2\u003e\n\u003cp\u003eAt 1600×1200 the N308S resolves finer detail than most inspection cameras in its class — enough to tell a hairline crack from a scratch on a cylinder wall. The 8.5 mm semi-rigid probe trades a little access for a wider field of view and more light, which is the right trade on diesel cylinders, larger bores, and used-car checks where you are looking for what the seller did not mention.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProbe diameter:\u003c\/strong\u003e 8.5 mm or 6.2 mm — choose at checkout\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArticulation:\u003c\/strong\u003e 2-way, 90°±3° steering\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResolution:\u003c\/strong\u003e 1600×1200\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFocus distance:\u003c\/strong\u003e 30–70 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsertion tube:\u003c\/strong\u003e Semi-rigid — 1 m, 2 m or 3 m\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIllumination:\u003c\/strong\u003e High-lumen LED, adjustable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWaterproof:\u003c\/strong\u003e IP67 — dust, water and oil resistant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecording:\u003c\/strong\u003e Photo and video to TF card, up to 32 GB\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBuying a Used Car — or Defending a Quote\u003c\/h2\u003e\n\u003cp\u003eHidden oil leaks, corrosion in a cylinder, a valve seated badly after a rebuild: these are the things a compression test hints at and a camera confirms. Technicians use the N308S to document condition before money changes hands — photos and video go to the TF card, and that file becomes the evidence in a quote, a warranty claim, or a conversation with a customer who does not believe the engine needs work.\u003c\/p\u003e\n\u003cp\u003eThe 3 m cable option is what makes a long diesel cylinder bank reachable from a single access point instead of repositioning for every cylinder.\u003c\/p\u003e\n\n\u003ch2\u003eN308S vs. R406S — Which Diameter\u003c\/h2\u003e\n\u003cp\u003eThe \u003ca href=\"\/en-de\/products\/ralcam-r406s-endoscope-automotive\"\u003eR406S\u003c\/a\u003e is 6.2 mm and gets into tighter spark plug holes on smaller petrol engines. The N308S is 8.5 mm with higher resolution and longer cable options, better suited to diesel, truck and heavy-equipment work.\u003c\/p\u003e\n\u003cp\u003eChoose by access point before resolution — a sharper sensor is no use if the probe will not go in. For a standalone 4.5\" screen with an 8.5 mm probe, see the \u003ca href=\"\/en-de\/products\/ralcam-f408b-articulating-borescope\"\u003eF408B\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eIn the Box\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eN308S car inspection camera\u003c\/li\u003e\n\u003cli\u003eSemi-rigid probe in the diameter and length selected\u003c\/li\u003e\n\u003cli\u003eUSB charging cable\u003c\/li\u003e\n\u003cli\u003eCarrying case\u003c\/li\u003e\n\u003cli\u003eUser manual (EN)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ralcam","offers":[{"title":"8.5mm (0.33in) \/ 1m (3.3ft) Semi-Rigid Cable","offer_id":42225880367200,"sku":"N308-S1M","price":109.99,"currency_code":"USD","in_stock":false},{"title":"8.5mm (0.33in) \/ 3m (9.8ft) Semi-Rigid Cable","offer_id":42405949800544,"sku":"N308-S3M","price":126.53,"currency_code":"USD","in_stock":false},{"title":"6.2mm (0.24in) \/ 1m (3.3ft) Semi-Rigid Cable","offer_id":42405949833312,"sku":"N306-S1M","price":119.0,"currency_code":"USD","in_stock":false},{"title":"6.2mm (0.24in) \/ 2m (6.6ft) Semi-Rigid Cable","offer_id":42405949866080,"sku":"N306-S2M","price":127.78,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/2017\/1616\/files\/n306-2-way-endoscope-camera-with-6-led-lights-62mm-lens-35-ips-screen-9416850.jpg?v=1764742116"},{"product_id":"auto-inspection-camera-n505","title":"Automotive Inspection Camera – Ralcam N505 | 2-Way Borescope","description":"\u003ch2\u003eRalcam N505 — Automotive Inspection Camera with 5\" Screen\u003c\/h2\u003e\n\u003cp\u003eThe N505 pairs the largest screen in the 2-way range with a battery you can replace in the field. When the 18650 cell runs down at hour four, you swap in a spare and keep working — no waiting for a charge, no cutting the job short. A 5.5 mm probe option gets it into access points most 2-way scopes cannot reach.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProbe diameter:\u003c\/strong\u003e 5.5 mm or 6.2 mm — choose at checkout\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArticulation:\u003c\/strong\u003e 2-way, 180° steering with damping lens and one-button probe lock\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScreen:\u003c\/strong\u003e 5\" IPS, wide viewing angle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eZoom:\u003c\/strong\u003e 4× digital magnification\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsertion tube:\u003c\/strong\u003e 1.5 m — resilient metal cable or semi-rigid, customisable to 3 m\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIllumination:\u003c\/strong\u003e High-lumen LED, adjustable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWaterproof:\u003c\/strong\u003e IP67 — water and oil resistant, with high-temperature protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery:\u003c\/strong\u003e Removable 4400 mAh 18650 cell\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecording:\u003c\/strong\u003e Photo and 720p video to TF card, up to 32 GB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating range:\u003c\/strong\u003e −10°C to 50°C, humidity below 90%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterface:\u003c\/strong\u003e Multilingual menu — EN, DE, FR, ES, RU, JA, KO, ZH\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eThe Replaceable Battery Is the Point\u003c\/h2\u003e\n\u003cp\u003eMost inspection cameras seal the battery inside. When it degrades after two years of daily charging, the tool degrades with it — and a scope that only lasts ninety minutes is a scope you stop trusting on long jobs. The N505 takes a standard 18650 cell. Carry two, swap in seconds, and replace them for the price of a coffee when they eventually wear out.\u003c\/p\u003e\n\u003cp\u003eThe same thinking applies to the probe: 1.5 m as standard, customisable to 3 m, with magnets, mirrors and protective caps available to adapt the tip to the job.\u003c\/p\u003e\n\n\u003ch2\u003eN505 vs. F408B — Screen Size or Probe Diameter\u003c\/h2\u003e\n\u003cp\u003eBoth are 2-way standalone scopes. The N505 has the larger 5\" screen, a replaceable battery and a 5.5 mm probe option for tight access. The \u003ca href=\"\/en-de\/products\/ralcam-f408b-articulating-borescope\"\u003eF408B\u003c\/a\u003e has a 4.5\" screen and an 8.5 mm probe, which gathers more light and gives a wider field of view on larger bores.\u003c\/p\u003e\n\u003cp\u003eIf your access point is narrow, the N505's 5.5 mm option decides it. If you mostly work on diesel pre-chambers or industrial pipe joints, the F408B's wider probe is the better read. For a smaller, lighter unit on straightforward jobs, see the \u003ca href=\"\/en-de\/products\/portable-endoscope-n306s\"\u003eN306S\u003c\/a\u003e. For independent four-way tip control, the \u003ca href=\"\/en-de\/products\/4-articulating-borescope-f606b\"\u003eF606B\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eIn the Box\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eN505 automotive inspection camera with 5\" IPS screen\u003c\/li\u003e\n\u003cli\u003eProbe in the diameter and cable type selected, 1.5 m\u003c\/li\u003e\n\u003cli\u003e4400 mAh 18650 battery\u003c\/li\u003e\n\u003cli\u003eUSB charging cable\u003c\/li\u003e\n\u003cli\u003eCarrying case\u003c\/li\u003e\n\u003cli\u003eUser manual (EN)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ralcam","offers":[{"title":"5.5mm (0.22in) \/ 1.5m (4.9ft) Resilient metal cable","offer_id":42405118804064,"sku":"N505-1.5M","price":128.88,"currency_code":"USD","in_stock":true},{"title":"6.2mm (0.24in) \/ 1.5m (4.9ft) Semi-rigid cable","offer_id":42991885484128,"sku":null,"price":119.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/2017\/1616\/files\/n505-2-way-articulating-engine-borescope-5-screen-waterproof-inspection-camera-6652170.webp?v=1764742116"},{"product_id":"automotive-inspection-camera-h406b","title":"Automotive Inspection Camera – Ralcam H406B | 4.3\" Borescope","description":"\u003ch2\u003eRalcam H406B — Detachable Automotive Inspection Camera\u003c\/h2\u003e\n\u003cp\u003eThe H406B separates the probe from the handset. Swap between a 6.2 mm and an 8.5 mm probe for different access points, change cable length for a different vehicle, or replace a worn probe after two years of daily use — without buying a new unit. The 4.3\" screen runs the whole thing standalone, no phone required.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProbe diameter:\u003c\/strong\u003e 6.2 mm or 8.5 mm — detachable, choose at checkout\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArticulation:\u003c\/strong\u003e 2-way, 180° damping-knob steering — holds its angle once set\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScreen:\u003c\/strong\u003e 4.3\" LCD, true-colour\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResolution:\u003c\/strong\u003e 1280×720 \/ 1920×1080\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFocus distance:\u003c\/strong\u003e 20–100 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsertion tube:\u003c\/strong\u003e Semi-rigid or flexible — 1 m or 2 m, up to 3 m on request\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIllumination:\u003c\/strong\u003e Six high-lumen LEDs, adjustable brightness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWaterproof:\u003c\/strong\u003e IP67 probe head — note the handset itself is not waterproof\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery:\u003c\/strong\u003e 2200 mAh rechargeable — up to 3 hours continuous\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e CE, FCC, RoHS\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy a Detachable Probe Pays for Itself\u003c\/h2\u003e\n\u003cp\u003eA mobile technician running a fleet account needs different reaches for different vehicles — a 1 m cable for under-bonnet work, 2 m to get down a diesel cylinder bank. With a fixed-probe scope that means two tools. With the H406B it means one handset and a second probe that costs a fraction of a complete unit.\u003c\/p\u003e\n\u003cp\u003eThe same logic applies to wear. Probe tips take the abuse: heat, oil, and being fed past sharp edges. When one fails after eighteen months of daily use, you replace the probe, not the scope.\u003c\/p\u003e\n\n\u003ch2\u003eH406B vs. H406A — Built-In Screen or Your Phone\u003c\/h2\u003e\n\u003cp\u003eSame detachable-probe design, same 2-way damping-knob steering, and probes are interchangeable between them. The H406B has its own 4.3\" screen and battery and runs standalone. The \u003ca href=\"\/en-de\/products\/ralcam-h406a-iphone-borescope\"\u003eH406A\u003c\/a\u003e uses your phone as the display, which makes it lighter to carry if the phone is already in your pocket.\u003c\/p\u003e\n\u003cp\u003eFor a 5\" screen and a replaceable 18650 cell, see the \u003ca href=\"\/en-de\/products\/auto-inspection-camera-n505\"\u003eN505\u003c\/a\u003e. For independent up\/down\/left\/right tip control rather than a single bending plane, step up to the 4-way \u003ca href=\"\/en-de\/products\/4-articulating-borescope-f606b\"\u003eF606B\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eIn the Box\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eH406B handset with 4.3\" screen\u003c\/li\u003e\n\u003cli\u003eDetachable probe in the diameter and length selected\u003c\/li\u003e\n\u003cli\u003eUSB charging cable\u003c\/li\u003e\n\u003cli\u003eCarrying case\u003c\/li\u003e\n\u003cli\u003eUser manual (EN)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eVideo Resources\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca rel=\"nofollow noopener noreferrer\" href=\"https:\/\/www.youtube.com\/@ralcamborescope\" target=\"_blank\"\u003eRalcam Borescope Official YouTube Channel\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca rel=\"nofollow noopener noreferrer\" href=\"https:\/\/www.youtube.com\/watch?v=sRusd6xn4F4\" target=\"_blank\"\u003eRalcam 4-Way 360° Articulating Borescope F606B Review\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ralcam","offers":[{"title":"6.2mm (0.24in) \/ 2m (6.6ft) Flexible Cable","offer_id":42304272629856,"sku":"H406B-2M","price":139.99,"currency_code":"USD","in_stock":false},{"title":"6.2mm (0.24in) \/ 2m (6.6ft) Semi-Rigid Cable","offer_id":42405787828320,"sku":"H406B-S2M","price":149.99,"currency_code":"USD","in_stock":true},{"title":"8.5mm (0.33in) \/ 1m (3.3ft) Flexible Cable","offer_id":42405787861088,"sku":"H408B-1M","price":119.99,"currency_code":"USD","in_stock":false},{"title":"8.5mm (0.33in) \/ 2m (6.6ft) Semi-Rigid Cable","offer_id":42405787959392,"sku":"H408B-S2M","price":129.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/2017\/1616\/files\/h406b-borescope-with-43-hd-screen-and-6-adjustable-led-lights-ip67-waterproof-8777421.jpg?v=1764742115"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/2017\/1616\/collections\/2-way-borescope-1813451.webp?v=1765508902","url":"https:\/\/www.ralcam.com\/en-de\/collections\/2-way-articulating-borescope.oembed","provider":"Ralcam","version":"1.0","type":"link"}