{"title":"Labor Day Sale — Borescopes \u0026 Inspection Cameras | RALCAM","description":"\u003cp\u003eLabor Day Sale runs Aug 26–Sep 9, 2026. Three standalone inspection scopes, built for the jobs you can't see.\u003c\/p\u003e\u003c!--split--\u003e\u003cp\u003eEvery scope in this collection is a self-contained tool—its own screen, its own battery, no phone and no app required. All three carry an IP67-sealed probe rated against water and oil, record photo and video to a TF card up to 32 GB, and ship with a carrying case and charging cable.\u003c\/p\u003e\u003cp\u003eChoose by access point rather than by price. The \u003ca href=\"\/en-de\/products\/4-articulating-borescope-f606b\"\u003eF606B\u003c\/a\u003e provides 4-way 360° articulation to sweep a full cylinder wall from one insertion point. The \u003ca href=\"\/en-de\/products\/auto-inspection-camera-n505\"\u003eN505\u003c\/a\u003e pairs a 5\" IPS screen with a removable 18650 battery you can swap mid-job, and a 5.5 mm probe for narrow access. The \u003ca href=\"\/en-de\/products\/m506-modular-borescope-interchangeable-probes\"\u003eM506\u003c\/a\u003e is the modular platform—one handle, tool-free probe swaps, and 4-way articulation on a 5\" HD display. Thermal imaging requires a software upgrade and a separately sold thermal probe.\u003c\/p\u003e\u003cp\u003eNot sure which fits your work? Compare the full range on the \u003ca href=\"\/en-de\/pages\/borescope-comparison\"\u003eBorescope Comparison\u003c\/a\u003e page, or read the \u003ca href=\"\/en-de\/pages\/borescope-buying-guide\"\u003eBorescope Buyer's Guide\u003c\/a\u003e.\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":"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":"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":"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":"m506-modular-borescope-interchangeable-probes","title":"Ralcam M506 Modular Borescope – Interchangeable Probes, 5\" HD","description":"\u003ch2\u003eThe Modular Inspection Camera Built for Professionals\u003c\/h2\u003e\n\u003cp\u003eStop carrying multiple scopes for different jobs. The M506 Modular Borescope System centralizes your inspection workflow with one ergonomic handle and an ever-growing ecosystem of interchangeable probes — no tools, no downtime, maximum flexibility.\u003c\/p\u003e\n\n\u003ch3\u003e🔧 Tool-Free Modular Probe System\u003c\/h3\u003e\n\u003cp\u003eSwap probes in seconds. The M506's quick-release mechanism accepts multiple probe types, including the ultra-compact 6.2mm articulating probe and an optional thermal imaging probe (sold separately, enabled via software upgrade). One platform adapts to every job site.\u003c\/p\u003e\n\n\u003ch3\u003e🎯 Precise 4-Way 360° Articulation\u003c\/h3\u003e\n\u003cp\u003eNavigate tight bends and complex cavities with confidence. The stainless steel control lever delivers smooth, precise, long-lasting articulation — no play, no sticking, engineered to last.\u003c\/p\u003e\n\n\u003ch3\u003e📺 5\" HD Display\u003c\/h3\u003e\n\u003cp\u003eSee every detail clearly on the large built-in 5\" HD screen. 3-level adjustable brightness, 4× digital zoom, and 180° image rotation adapt to any lighting condition or inspection angle.\u003c\/p\u003e\n\n\u003ch3\u003e🌡️ Thermal Imaging Ready\u003c\/h3\u003e\n\u003cp\u003eUnlock thermal imaging with a simple software upgrade (thermal probe sold separately). Instantly identify overheated components, hidden moisture, or insulation failures — ideal for building technology, HVAC, and electrical maintenance.\u003c\/p\u003e\n\n\u003ch3\u003e📸 One-Touch Capture\u003c\/h3\u003e\n\u003cp\u003ePress once for a photo. Hold 3 seconds to start video recording. The dedicated quick-capture button keeps documentation effortless on the job.\u003c\/p\u003e\n\n\u003ch3\u003e🔥 High-Temperature Protection\u003c\/h3\u003e\n\u003cp\u003eBuilt-in overheat protection activates at ≥90°C, keeping you and your equipment safe in demanding environments.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisplay:\u003c\/strong\u003e 5\" IPS, 3-level adjustable brightness, 180° image rotation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResolution:\u003c\/strong\u003e 1280×720 HD\u003c\/li\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, 360° full-direction control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDigital Zoom:\u003c\/strong\u003e 4×\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIllumination:\u003c\/strong\u003e High-lumen LED (adjustable)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecording \/ Storage:\u003c\/strong\u003e Photo \u0026amp; video; supports up to 32GB TF card\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection:\u003c\/strong\u003e IP67 waterproof \u0026amp; oilproof; high-temperature protection (≥90°C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery:\u003c\/strong\u003e 4400mAh rechargeable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProbe Length:\u003c\/strong\u003e 1.5m (standard)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e −10°C to 50°C\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eBy RALCAM — Professional Inspection Solutions\u003c\/em\u003e\u003c\/p\u003e","brand":"Ralcam","offers":[{"title":"6.2mm (0.24in) \/ 1.5m (4.9ft)","offer_id":42781236592736,"sku":"M506-S1.5M","price":399.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/2017\/1616\/files\/M506.webp?v=1780296197"}],"url":"https:\/\/www.ralcam.com\/en-de\/collections\/labor-day-sale.oembed","provider":"Ralcam","version":"1.0","type":"link"}