{"title":"Borescope with Screen – Built-In Display Inspection Cameras","description":"\u003cp\u003eNo phone. No app. No pairing. Ralcam borescopes with built-in screens give you a live HD view the moment you press power — one device, one battery, nothing to set up.\u003c\/p\u003e\u003c!--split--\u003e\u003ch2\u003eStandalone Inspection, Nothing to Set Up\u003c\/h2\u003e\u003cp\u003eA phone-connected probe is cheaper, but it also means an unlocked phone balanced on a fender, a cable adapter to lose, and a battery you were relying on for something else. An all-in-one unit removes all of that. It matters most where you work: in a crawlspace, on a lift, in the rain, with gloves on.\u003c\/p\u003e\u003ch3\u003eChoosing a screen size\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003e3.5\"\u003c\/strong\u003e — pocketable, for constant quick checks where portability wins.\u003cbr\u003e\u003cstrong\u003e4.3\" and 4.5\"\u003c\/strong\u003e — the general-purpose middle; enough detail for engine and pipe work without bulk.\u003cbr\u003e\u003cstrong\u003e5\" IPS\u003c\/strong\u003e — for detail work and for showing a customer what you found, usually paired with 4-way articulation and a detachable or modular probe.\u003c\/p\u003e\u003ch3\u003eRecording as standard\u003c\/h3\u003e\u003cp\u003eEvery model here writes photos and video to a removable TF card as you inspect, so the finding survives the job — into the report, the quote, or the warranty claim. Files transfer straight to a laptop without an app or an account.\u003c\/p\u003e\u003ch3\u003eShared specs\u003c\/h3\u003e\u003cp\u003eRechargeable batteries rated for a full working session, IP67-sealed probes from 3.9 mm to 8.5 mm in flexible, semi-rigid, and rigid cable, and adjustable LED illumination.\u003c\/p\u003e\u003ch3\u003eRelated\u003c\/h3\u003e\u003cp\u003eFor a lighter, lower-cost kit, \u003ca href=\"\/en-de\/collections\/iphone-borescope\"\u003ephone-connected probes\u003c\/a\u003e use a display you already carry. Compare steering under \u003ca href=\"\/en-de\/collections\/2-way-articulating-borescope\"\u003e2-way\u003c\/a\u003e and \u003ca href=\"\/en-de\/collections\/4-way-articulating-endoscope\"\u003e4-way\u003c\/a\u003e models.\u003c\/p\u003e","products":[{"product_id":"4-articulating-borescope-f606b","title":"4-Way Articulating Borescope – Ralcam F606B","description":"\u003ch2\u003eRalcam F606B — 4-Way Articulating Borescope with 4.3\" Screen\u003c\/h2\u003e\n\u003cp\u003eThe F606B steers its camera tip independently up, down, left and right, so you can round a bend and then look back along the surface you just passed — without withdrawing the probe and starting again. A 4.3\" screen and 4400 mAh battery make it a standalone tool: no phone, no app, six hours on a 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 3.9 mm or 6.2 mm — choose at checkout\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArticulation:\u003c\/strong\u003e 4-way, 360° full-direction control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScreen:\u003c\/strong\u003e 4.3\" HD, 1280×720\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsertion tube:\u003c\/strong\u003e Tungsten wire mesh — 1 m, 2 m, 3 m or custom length\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 — sealed against water and oil\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery:\u003c\/strong\u003e 4400 mAh rechargeable — up to 6 hours continuous\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\u003eWhere the 3.9 mm Probe Changes the Job\u003c\/h2\u003e\n\u003cp\u003eMost borescopes stop at 5.5 mm. The 3.9 mm option goes through a spark plug hole on a modern small-displacement engine where a 6 mm probe simply will not fit — and once it is in, the 4-way tip lets you sweep the full cylinder wall and the underside of the valve seats from a single insertion point.\u003c\/p\u003e\n\u003cp\u003eAn aviation MRO technician uses the same combination to walk a turbine blade trailing edge. A mechanic checking carbon buildup on GDI intake valves angles the tip back toward the port roof — an area a 2-way scope cannot reach at all, because it can only bend in one plane.\u003c\/p\u003e\n\n\u003ch2\u003eF606B vs. F606A — Built-In Screen or Your Phone\u003c\/h2\u003e\n\u003cp\u003eIdentical articulation, identical probe options. The \u003ca href=\"\/en-de\/products\/endoscope-iphone-android-f606a\"\u003eF606A\u003c\/a\u003e uses your phone as the display and saves footage straight to your camera roll, which is faster when you need to send a client a photo from the bay. The F606B carries its own screen and battery, so your phone stays free and the inspection does not stop when a call comes in.\u003c\/p\u003e\n\u003cp\u003eIf you want a larger display, the \u003ca href=\"\/en-de\/products\/m6x-4-articulating-endoscope\"\u003eM6X\u003c\/a\u003e has a 5\" IPS panel and a replaceable 18650 cell you can swap in the field. If you would rather change probes than buy a second scope, look at the modular \u003ca href=\"\/en-de\/products\/m506-modular-borescope-interchangeable-probes\"\u003eM506\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eIn the Box\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eF606B 4-way articulating borescope\u003c\/li\u003e\n\u003cli\u003eInsertion tube 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":"6.2mm (0.24in) \/ 1m (3.3ft)","offer_id":41810076631136,"sku":"F606B-1M","price":209.99,"currency_code":"USD","in_stock":false},{"title":"6.2mm (0.24in) \/ 2m (6.6ft)","offer_id":42406010814560,"sku":"F606B-S2M","price":239.99,"currency_code":"USD","in_stock":true},{"title":"6.2mm (0.24in) \/ 3m (9.8ft)","offer_id":42406010847328,"sku":"F606B-3M","price":289.99,"currency_code":"USD","in_stock":false},{"title":"6.2mm (0.24in) \/ customized","offer_id":42406010880096,"sku":"F606B-C","price":319.99,"currency_code":"USD","in_stock":false},{"title":"6.2mm (0.24in) Dual Lens \/ 1.5m (4.9ft) Semi-Rigid","offer_id":43073893335136,"sku":"F606BD-S1.5M","price":299.99,"currency_code":"USD","in_stock":false},{"title":"3.9mm (0.15in) \/ 1m (3.3ft)","offer_id":42907785527392,"sku":"F604B-1M","price":299.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/2017\/1616\/files\/f606b-articulating-borescope-with-6-led-lights-62mm-lens-35-ips-hd-screen-2747392.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-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"},{"product_id":"m6x-4-articulating-endoscope","title":"4-Way Articulating Endoscope – Ralcam M6X | 5\" IPS Screen","description":"\u003ch2\u003eRalcam M6X — Professional 4-Way Articulating Borescope with 5\" IPS Screen\u003c\/h2\u003e\n\u003cp\u003eThe M6X is built for inspections where a 2-way scope runs out of reach. A professional-grade joystick bends the probe tip independently up, down, left and right, so you can steer around a bend and then look back along the wall you just passed — without withdrawing and reinserting the probe.\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 4-way joystick control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScreen:\u003c\/strong\u003e 5\" IPS, 1280×720, true-colour with wide viewing angle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsertion tube:\u003c\/strong\u003e Semi-rigid, 1.5 m — holds its shape once bent\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIllumination:\u003c\/strong\u003e High-lumen LED at the probe tip, adjustable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWaterproof:\u003c\/strong\u003e IP67, plus high-temperature protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery:\u003c\/strong\u003e 4400 mAh 18650 — up to 4 hours continuous\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\u003eDetachable probe:\u003c\/strong\u003e Yes — probe separates from the handset\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhere the 5\" Screen Earns Its Place\u003c\/h2\u003e\n\u003cp\u003eAn aviation MRO technician inspecting turbine blade trailing edges needs to spot a hairline crack on a curved, reflective surface — the extra screen area over a 4.3\" unit is the difference between confirming a finding on the spot and pulling the engine for a second look. A maintenance engineer walking a client through a gearbox inspection can hold the M6X where both of them can see it. And because the display is IPS rather than TN, the image doesn't wash out when you tilt the unit to reach an awkward angle.\u003c\/p\u003e\n\n\u003ch2\u003eM6X vs. F606B — Screen Size and Battery\u003c\/h2\u003e\n\u003cp\u003eBoth are 4-way articulating with a 6.2 mm probe option. The \u003ca href=\"\/en-de\/products\/4-articulating-borescope-f606b\"\u003eF606B\u003c\/a\u003e has a 4.3\" screen, a 3.9 mm probe option for tight spark plug access, and a 6-hour battery. The M6X trades some runtime for a 5\" IPS display and a replaceable 18650 cell you can swap in the field rather than waiting to recharge. If probe access is your constraint, the F606B's 3.9 mm option decides it; if you spend the day reading fine detail on screen, the M6X does.\u003c\/p\u003e\n\n\u003ch2\u003eM6X vs. M506 — Fixed or Modular\u003c\/h2\u003e\n\u003cp\u003eSame 5\" screen, same 4-way articulation, same 6.2 mm probe. The \u003ca href=\"\/en-de\/products\/m506-modular-borescope-interchangeable-probes\"\u003eM506\u003c\/a\u003e adds a tool-free quick-release so you can swap probes — including an optional thermal imaging probe — without buying a second unit. Choose the M6X if you work with one probe configuration; choose the M506 if your jobs vary or you want the thermal upgrade path open.\u003c\/p\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cp\u003eEngine diagnostics without disassembly, aviation turbine and airframe maintenance, pipe and HVAC inspection, weld and casting inspection, and quality assurance across manufacturing and MRO.\u003c\/p\u003e\n\n\u003ch2\u003eIn the Box\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eM6X borescope with 5\" IPS screen\u003c\/li\u003e\n\u003cli\u003e6.2 mm semi-rigid probe, 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":"6.2mm (0.24in) \/ 1.5m (4.9ft)","offer_id":42422775218272,"sku":"M606X-S1.5M","price":359.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/2017\/1616\/files\/M6X_4-Way_Articulating_Inspection_Camera_for_Auto_Repair.webp?v=1776927634"},{"product_id":"new-uv-crack-detection-m608u","title":"UV Crack Detection Borescope – Ralcam M608U 4-Way Articulating","description":"\u003ch2\u003eRalcam M608U UV Crack Detection Borescope\u003c\/h2\u003e\u003cp\u003eThe Ralcam M608U is a professional UV inspection borescope built to make hairline cracks, weld defects and fluorescent-dye leaks visible where standard cameras fall short. Its built-in UV illumination causes penetrant dye to fluoresce, so flaws stand out clearly on the screen during NDT (non-destructive testing), automotive, aerospace and HVAC inspections.\u003c\/p\u003e\u003ch3\u003eWhy technicians choose the M608U\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUV crack \u0026amp; leak detection\u003c\/strong\u003e – UV light makes fluorescent penetrant and dye-tracer leaks pop, ideal for weld inspection and refrigerant leak tracing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-way 360° articulation\u003c\/strong\u003e – steer the tip precisely around bends and into cavities for a full view of the inspection area.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5-inch HD display\u003c\/strong\u003e – a large, bright screen shows fine detail without connecting a phone.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDetachable probe\u003c\/strong\u003e – swap or replace the cable quickly to suit different jobs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8.5mm waterproof probe\u003c\/strong\u003e – an IP67-rated camera head that withstands oil, water and dust in harsh environments.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhere it works\u003c\/h3\u003e\u003cp\u003eEngine and cylinder inspection, weld and casting flaw detection, aircraft and turbine maintenance, pipe and HVAC leak tracing, and any task where surface cracks must be confirmed before failure.\u003c\/p\u003e","brand":"Ralcam","offers":[{"title":"8.5mm (0.33in) \/ 1m (3.3ft)","offer_id":42430707400800,"sku":"M608U-1M","price":709.4,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/2017\/1616\/files\/M608U.webp?v=1765607535"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/2017\/1616\/collections\/1_79ec1ada-9d43-414c-9a1e-e43fdb79d7ed.webp?v=1784602386","url":"https:\/\/www.ralcam.com\/en-de\/collections\/borescope-with-screen.oembed","provider":"Ralcam","version":"1.0","type":"link"}