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For an accessible cavity and a small probe, compare the standalone-screen Klein ET17. For a larger opening with optional cable extensions, compare the RIDGID micro CA-150. For a rod-mounted camera viewed on a phone, compare the Klein ET30. Choose by access, reach and how you will save the findings.
Starting point for small-access cavity checks: Check the Klein ET17 on Amazon
This guide compares short inspection cameras for plumbing access work. They need a clear view through an opening; they do not see through walls. For a long main-line inspection or a buried head you must locate, start with our sewer-camera guide. This is a maker/manual and listing comparison, not a hands-on image-quality test.
Inspection Cameras Compared
Scroll sideways to compare all columns; camera names stay visible. With a keyboard, focus the table and use the arrow keys.
| Camera | Choose for | Head / access | Included reach | Viewing / saving | Power / extras |
|---|---|---|---|---|---|
| Klein ET17 | Small-access cavity checks with own screen | 5.5-mm head; allow attachment clearance | 9.8 ft / 3 m probe | 4.3-in. screen; 720p camera; photos/video and USB-C transfer | Rechargeable; USB power source separate |
| RIDGID CA-150 | Handheld screen with extension options | 17-mm head; about 3/4-in. opening per manual | 3 ft; optional extensions up to 30 ft | 3.5-in. screen; 20 stills; live RCA output | 4 AA included; extensions separate |
| Klein ET30 | Rod-mounted phone viewing in a cavity | 1-1/8-in. hole bare; 1-1/2-in. with collar/attachments | Flex rod included; longer fish rods separate | Phone/app; 1080p photos, 720p video per manual | Rechargeable; needs phone and USB power supply |
Manual figures control this table. Waterproof reach and cable reach are different; both Klein manuals forbid underwater inspection. On October 6, 2026, all three linked models showed new stock sold by Amazon.com when checked. Later offers and variants may differ.
Choose the Inspection Before the Camera
- A small opening and a short accessible cavity: compare ET17’s thin probe and own screen. Attachments may need more clearance.
- A larger opening and a need for extensions: compare CA-150 after checking the route, bend radius and exact extension compatibility.
- A cavity reached with fish rods and phone viewing: compare ET30, with room for the complete camera/collar assembly.
- A long drain, main line or buried location: compare a proper push-reel system in our sewer camera with locator guide, or hire the inspection. A rod/cable extension does not make these cameras a sewer reel.
All three manuals prohibit inspection around energized electrical components or moving machinery. Identify and isolate those hazards before access, following the manual’s setup procedure. An inspection camera is not an insulated tool, drain-clearing cable or proof that a cavity is safe to enter. Do not drill blindly to create an opening.
Klein Tools ET17 Utility Borescope
5.5-mm head · 9.8-ft probe · 4.3-in. screen · photos/video · USB-C rechargeable
Compare the ET17 for a small accessible opening when you want to work without a phone app. Its 5.5-mm single-lens head is on a 9.8-foot probe, and the separate 4.3-inch display has a kickstand. The included mirror lets you look to the side; the hook and magnet are retrieval accessories, not permission to force a blocked path open.
The manual lists a 1280 × 720 camera, an 854 × 480 display and 2 GB of internal storage for photos and video. The Amazon page has a generic 1080p video field, but the maker page and manual specify 720p. Use the manual’s figures; camera resolution and screen resolution are different. Files can transfer through USB-C.
The box includes the probe, hook, magnet, mirror, USB cable and carrying case. The manual requires a USB-A computer port or suitable USB power supply; the power supply is not included. Klein’s page calls the probe nylon; its current manual calls it PVC. Both give 3 meters, with the page rounding that to 10 feet and the listing/manual saying 9.8 feet. Do not buy it on an assumption that it has the armored probe used by other Klein models.
Klein lists about three hours of battery life on a full charge, rather than an all-day runtime. The manual forbids underwater inspections and exposing the display to moisture, rain or snow. The IP67 camera/probe wording does not override that instruction. Choose a different tool for a submerged drain inspection.
- 5.5-mm single-lens head for small-access comparisons
- Own screen and kickstand; no phone needed for viewing
- Captures photos and video, with USB-C transfer
- Probe and hook, magnet, mirror and case included
- Klein’s manual forbids underwater inspection
- Single lens; side viewing uses the included mirror
- Manual lists about three hours of battery life
Verdict: A useful starting point for accessible cavity checks where the small head and standalone screen fit the job. Check the opening with the chosen attachment; head diameter alone does not guarantee it fits.
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RIDGID micro CA-150 Inspection Camera (36848)
17-mm head · 3-ft cable · 3.5-in. screen · 20 saved stills · four AA batteries
The CA-150 suits a larger access opening when you want a handheld display and compatible cable-extension options. The linked 36848 has a 17-mm head and a 3-foot cable. RIDGID’s manual calls for an opening approximately 3/4 inch (19 mm) or larger for that head; a nominal 17-mm hole is not its stated access requirement.
The manual allows compatible extensions for up to 30 feet of reach, but they are additional purchases. That is reach, not a 30-foot immersion rating or a promise to negotiate every bend. RIDGID says not to bend the cable tighter than a 2-inch radius and not to force it through a tight space or use it to clear a path. Confirm the current extension part with RIDGID before ordering: the current page and the saved manual name different accessory numbers.
The 3.5-inch display is 320 × 240. Internal memory holds 20 still images; further captures overwrite the oldest after that limit. You can replay those images on the unit. The included RCA lead supplies a live output to a compatible monitor or external recorder; this is a different workflow from the ET17’s USB-C file transfer.
The kit lists the camera, imager cable, mirror, hook, magnet, RCA lead and four AA batteries; RIDGID also lists a blow-molded storage case. The manual gives 1.7 pounds for the tool with batteries, while the product page lists 5.5 pounds without the same scope. Do not treat the latter as a verified handheld weight. RIDGID’s lifetime warranty covers qualifying material/workmanship defects, with misuse, abuse and normal wear excluded.
The correctly assembled head and cable are rated waterproof to 10 feet (3 meters). The display is not water resistant, and the manual forbids use when the operator or device is standing in water. Chemical exposure and cleaning requirements still need assessment; waterproofing is not chemical compatibility.
- Own handheld screen and four-AA power
- Compatible extensions can add reach beyond the included 3 feet
- Stores 20 still images for on-unit playback
- Live RCA output for a compatible monitor or recorder
- Larger head; manual calls for about a 3/4-in. access opening
- Extensions are separate and require exact compatibility checks
- Display is not water resistant
- Saved-still workflow differs from USB-C file transfer
Verdict: Compare it for an accessible larger opening when extension compatibility and a handheld screen matter. If you need a slim probe and transferable recorded files, compare the ET17 before adding extensions.
Klein Tools ET30 Compact Wireless Inspection Camera
Fish-rod mount · Wi-Fi/app viewing · 1080p photos, 720p video per manual · rechargeable
The ET30 is a compact camera that attaches to compatible fish rods, rather than a 5.5-mm camera on a long flexible snake. Compare it for a cavity with enough access and a suitable rod route. Klein specifies a 1-1/8-inch hole without the accessory collar, or 1-1/2 inches with the collar and attachments. Its larger assembly is a different choice from the ET17’s thin probe.
Klein’s page advertises 1080p photos and video. The current manual separates 1920 × 1080 still images from 1280 × 720 video. This comparison uses those manual figures. Always-up viewing and automatic/manual focus are useful ways to orient a cavity image; they do not establish that a hidden pipe is sound or leaking.
Viewing requires the ET30 app on a compatible iPhone or Android phone and a connection to the camera’s Wi-Fi network. Verify current app support for your device before buying. The manual says to disconnect from the camera Wi-Fi when the phone needs internet or when sending files. Plan that step before promising to send a customer a recording during an inspection.
The kit includes the camera, mirror, magnet, hook, thread adapters, flex rod, case and USB-C cable. Longer fish rods and the USB power supply are separate. Klein says it works with its fish rods; the included adapters support other thread types. Check the actual thread and complete assembly rather than assuming any rod fits.
The manual lists approximately 1.2 hours of battery life, disables operation during charging, and requires the charging-port cover sealed for its IP67 rating. It expressly prohibits immersion and underwater inspections. Choose it for the rod-mounted viewing workflow, not as a waterproof sewer camera.
- Fish-rod mounting and thread adapters included
- Always-up viewing and adjustable focus
- Phone photo/video capture through the ET30 app
- Mirror, magnet, hook, flex rod, case and USB-C cable included
- Requires a compatible phone, app and Wi-Fi connection
- Needs a larger opening than a slim-probe borescope
- Longer fish rods and USB power supply are separate
- Manual forbids immersion and operation while charging
Verdict: Choose it when a rod-mounted camera fits an accessible cavity and you want to view and save on a phone. Skip it for a small probe hole, underwater work or a job that needs a standalone screen.
Before You Buy
- Measure the safe access route. Check the complete head/attachment size, opening, distance and bends. A longer cable does not guarantee it can be pushed through your route.
- Decide how to document findings. Compare saved stills, recorded files and live output separately. Use ET17 for USB-C file transfer, CA-150 for its on-unit stills/live RCA workflow, or ET30 for the phone/app workflow.
- Match the exposure to the manual. Keep the standalone displays dry. Both Klein manuals here forbid underwater use. Follow the CA-150’s separate head/cable limit and chemical, operator-footing and cleaning instructions.
- Count the extra pieces. CA-150 extensions and ET30 longer fish rods are separate. Both Klein cameras need a suitable USB power source; their manuals say the power supply is not included. Confirm exact compatibility, rather than buying an accessory by diameter alone.
- Keep customer images private. Capture only what is needed for the job, get permission before sharing, and review app permissions/storage. Camera images can include personal possessions and identifying details. No privacy claim about an app is made here.
- Check the current offer and warranty. Select the exact model, new condition and seller. Klein’s current policy has different product groups and requires an authorized-distributor receipt; confirm the period for your unit/packaging and battery coverage. It excludes misuse, alterations, lack of maintenance and normal wear. RIDGID’s lifetime defect warranty is not all-damage coverage. Read the terms and retain the receipt.
For the rest of the service kit, see our professional plumbing tools guide. If the problem is finding a hidden water leak, use our leak-diagnosis guide to plan the investigation; a camera view alone does not establish the source.
FAQ
Can an inspection camera see through a wall?
No. These cameras view what is in front of the lens through an accessible opening. They do not see through drywall or prove a concealed pipe has no leak. Identify a safe access route; do not drill blindly around pipes or wiring.
Can I use these borescopes as a sewer camera?
A short probe or fish-rod camera does not replace a long sewer-camera push reel. Check access, required reach, bends, exposure and the manual. Both Klein manuals here forbid underwater inspection. For a main-line run or locating a buried head, compare a suitable sewer-camera system or hire the inspection.
Does IP67 mean the camera is safe underwater?
Follow the exact model’s manual. ET17 and ET30 instructions prohibit underwater inspections; ET30 also requires its charging-port cover sealed for the stated rating. CA-150 rates its properly assembled head and cable to 10 feet, but its display is not water resistant. None of those ratings proves chemical or electrical protection.
Which camera works without a phone?
ET17 and CA-150 have their own displays. ET17 records files that can transfer through USB-C. CA-150 stores 20 still images for on-unit playback and has live RCA output. ET30 requires a compatible phone and the ET30 app.
Are both Klein cameras 1080p?
The ET17 manual lists a 1280 × 720 camera and an 854 × 480 screen, despite a generic 1080p listing field. The ET30 manual specifies 1920 × 1080 photos and 1280 × 720 video, while the maker page advertises 1080p for both. Compare the separate camera, display and recording figures; use the exact model’s manual.
Why Trust Plumbing Picks
Plumbing Picks is written by a licensed Georgia journeyman plumber. This comparison uses the exact maker pages, manuals and listings below, not a field test or a claim that we own these cameras. Source conflicts are shown where they affect access, recording or included parts. Nobody pays to be included here. Read who writes this and how we pick.
Sources
- Klein ET17 maker page and ET17/ET18/ET19 manual
- RIDGID CA-150 maker page and CA-150 operator’s manual, revision C
- Klein ET30 maker page and ET30 instructions
- Klein warranty by product group; RIDGID lifetime warranty terms
- Exact Amazon listings for ET17, CA-150 catalog 36848 and ET30, linked above
Your Inspection-Camera Shortlist
Start with ET17 for a slim probe and standalone recorded-file workflow, CA-150 for a larger-access handheld with compatible extension options, or ET30 for a fish-rod camera used with a phone. Skip the purchase if the access, exposure or required reach does not fit. A one-time main-line problem may call for a hired sewer inspection rather than another short camera.