great, don't know how i managed without it, would definitely recomend.

The camera set comes with instructions for use in German, which will definitely help the user, even if the device is basically very easy and intuitive to use. The individual buttons on the control unit work perfectly and pleasantly. With a battery life of around four hours, you can investigate a problem quite extensively. The three lenses at the tip of the guide wire deliver a pin-sharp image on the device's own screen; at least for objects at a distance of about 2 cm to about 10 cm. In this respect, the camera is primarily intended for examinations of narrow corridors and not, for example, of sewage pipes in the ground, since the camera would have to capture and display a larger field of view for these cases. However, the set is not designed for the latter. And it displays the area that the device is supposed to capture and examine perfectly. The dimmable and good illumination of the middle lens is also very helpful and also supports a clean display. With the additional lighting on the housing of the screen, you can also work well in dark surroundings, i.e. you can find the entrance to a tube into which the hose of the endoscope is to be inserted without any additional tools. The hose itself is quite rigid, which is probably necessary to move it forward at all. However, successful handling here requires some patience and practice; but then you get along well with the camera. When handling the endoscope tube, it is very helpful if a second person holds the screen or you clamp it (carefully) in some way, otherwise it wobbles around and you cannot observe anything on it. With a length of 5 meters, the camera hose certainly enables most household examinations without reaching your limits so quickly. A hook (included) or a magnet (also available) can be attached to the tip of the probe, with which you can also use the camera to fish objects out of pipes or similar. In addition, the camera, including the hose, is actually waterproof. All around good and definitely deserves 5 stars!

Great product can be fit to glow plug and injector holes.

I was quite surprised at the image quality of this device at optimum focal distances, which is aided by a big screen (compared to most others).
I did look at the traditional design offerings (the ‘pistol grip’ type) as a couple of friends have them, but the resolution, illumination and a screen about a third of the size of this unit’s screen didn’t leave me particularly impressed.
There’s little point in describing the unit and it’s functions are these are adequately (and accurately) described in the sellers information.
In use, this does need some practice in terms of ‘wiggling and turning’ the probe, both to get it to where you want it, and to interpret what you are seeing which may at that point be ‘rotated’ from the ‘horizontal’ you have in your head. Once mastered, it can return an astonishingly detailed picture at optimal focal length (I’d say about 2 - 4 cm). Outside of that distance (as a pre-focused camera, it will actually see as far as you want it to), the image is less crisp, but still good.
I bought this to try to track down the cause of water leaking into the boot of my car which was leaving wet carpets. I was able to feed the probe up a box section in the boot area while leaving a hose running down the car’s roof. I was able to see where the water was coming in (very satisfying), which saved me any amount of stripping -out and trim removal. It was worth its price for this alone, although I couldn’t help reflecting on many, previous situations in house and car where I wish I’d had this at my disposal. Similarly, I’m anticipating this being very useful for similar situations in the future, especially as I’m not as young as I once was and tight ‘contortionist’ spots are getting more difficult as time goes by.
The last thing to comment about is the price. Some of the ‘professional’ units like this can cost three/four/five (or more) times the cost of this one. They might be more rugged for industrial use, but for DIY use this is perfectly OK.
All-in-all I’m very pleased (and impressed) with this device.

The quality is really good, processing and no sharp edges or the like. The screen is big enough for the necessary work to see the examined objects well. I think it's good that a battery is installed, so you don't necessarily need a laptop as a screen, which makes it very mobile in the suitcase. The supplied cable is a little too long, because the manufacturer really meant well. 2 to 2.5 meters thick would have been enough. The LEDs provide enough light for both cameras and if they are outshone, they can be conveniently dimmed. The picture quality is ok, you can see pretty much everything. I don't think it should be a 1080 resolution, but a little less. In general it was worth the money for me and has already found quite a few problems or objects. Except for the slightly too long cable, this system can really be recommended. LG Frank

works straight out of the box, good picture, clear bright image on screen , can't fault it for the price

As a home inspector, my toolbox includes a variety of testing and measuring tools: screw drivers, nut drivers, framing square, concrete and wood moisture meters, temperaturehumidity meters, multi-meters, GFCI & AFCI testers, infrared and probe thermometers, binoculars and a couple of really nice digital cameras to document the appearance of the residence or structure.

Two hands required for a thermal temperature picture, one holding a digital IR thermometer directed at the object while aligning the camera with my other hand to “capture” the reading works well enough; however, a lightweight IR camera attachment to my cell phone is quicker and gives my client a true visual representation of temperature variance.

During a recent home inspection with the house temperature set at 75 and the exterior temperature 61 (picture 1), I felt a breeze several inches away from the chipped plaster above the receptacle and wanted to know more. Placing my anemometer meter at the opening, a 3 mph wind speed was recorded, the draft I felt several inches away. A wide view of the wall was provided by the K&F Concept IR camera that displayed a 9 degree wall temperature difference within 24” inch span (lack of or missing insulation). Removing the cover and receptacle (outlet), I was able to easily insert the lens for a look behind the wall. As the pictures captured, there was no insulation directly behind the receptacle box, above (bent the lens cable upward) and below using the side view camera. The red, yellow, blue, green IR picture is the outside (fiber cement siding). The exterior outlet aligns with the cold spot to the right of the interior outlet and the blue in the upper right corner is the interior outlet. I did not attempt to locate the source of the air leakage, annotating in my report further evaluation by a licensed contractor for options and cost. The nine pictures provided by the K&F Concept and IR camera provide a more comprehensive visual understanding than a mere draft from the outlet.

What is the water bottle for?
I drilled a hole on each end, passed the cable through secured with tape making a lens “stand off” for better observation looking in HVAC duct. With the rounded bottle, I’ve gone 14 feet without getting stuck.

The IR camera comes in a protective small semi-hard case, easy to use with the ability to annotate comments directly onto each picture.

The scope is lightweight and easy to use. All functions (picture, video, light, etc.) controlled by your thumb, except for the side view camera switch which is at the base of the cable. Packaged in a protective hard plastic case, with two metal latches and top and bottom foam padding cut to fit the cable, camera, USB cable and three included lens attachment options is more than adequate. A small magnet, 90 degree mirror and hook to fish wire, or “I dropped my ring in the drain” recovery tool are nice additions.

Providing two options for image transfer (one via the provided USB cable or by removing the mini SD card) gives the user flexibility.

As a home inspector, having a “third eye” is nice to answer any lingering questions regarding temperature and other issues: wall cavities, HVAC units, duct, vents, smoke chamber, chimney…

Adding the K&F Concept infrared thermal camera attachment to my tool inventory will allow more accurate reporting. Well worth the investment.

The Teslong endoscope is delivered in a practical hard case. The scope of delivery includes the device itself, a USB cable for charging and data transfer, a 32GB SD memory card, two additional tips that can be attached to the probe, one with a hook and one with a magnet, a small Allen key, the you need to remove the probe hose, a suitable spare screw, a folding stand and operating instructions in different languages. In terms of quality, the device makes a very good impression, both the case and the keys feel very high quality. The operation of the endoscope is relatively simple and after a short reading of the, unfortunately somewhat poor, operating instructions, the device can be used. The picture quality of the is not outstanding, but more than sufficient for the actual use of the device. The 5 meter long probe hose is a bit stiff, but has the advantage that it can be maneuvered and pushed through narrow pipes better. What is also quite positive is that you can dim the LEDs on the lens, so you can counteract overexposure on reflective surfaces such as stainless steel pipes. In my opinion, the supplied folding support is useless, as soon as you use the rather stiff probe cable, the support no longer offers any support and the endoscope flies around. A magnetic holder or the possibility of attaching the device to a tripod would be desirable here, as this would make the work much easier. Unfortunately, the supplied manual leaves a lot to be desired. Only the essential operation of the device is explained, but how to attach the additional tips, for example, you have to find out yourself, this is absolutely not discussed. It also explains how to remove or attach the camera probe, if you follow the instructions exactly, the device is then ready for scrap. The attachment of the probe is like a USB-C connector, which is additionally fixed with a screw, if you insert it as instructed in the instructions and then turn it clockwise until it clicks, you will break the connector, so be careful. There was probably something sloppy in the translation, because on the English pages it is described in much more detail. The built-in microphone is a nice feature for leaving any comments while working, but unfortunately it also records all the button operations, which then become noticeable as a very loud click on the video. Overall, I would describe the Teslong endoscope as quite useful, both for the do-it-yourselfer and for semi-professional use. A little more effort in translating the manual and possibly a possibility to attach the device to a tripod would be desirable. In my opinion, the price is justified.

Great product for my electrician son to use when running cables. Has a flexible endoscope cable with good rigidity that allows for good camera control. 2 camera positions, one at the very end and others on either side; all have individual LED lights. Cameras display high-quality images up close. These images can be captured by photo or video. Also records sound. A button to switch between cameras. Waterproof SD card included. Overall fit for purpose, well made and easy to use.

use this as part of my PPI (Pre-Purchase Inspection) kit. It has a great screen that is very clear. I like the ability to take pictures and videos to avoid hassles. This allowed me to look deep into areas of the car to reveal damage and mechanical issues.