K&F Concept endoscope camera. With a cable length of about 5 meters, this is aimed at semi-professional users, typical areas of use would be, for example, the examination of pipes, cavities in vehicles, hard-to-reach places in shafts or, as in my case, the inspection of a pellet silo.

Qualitatively, the endoscope makes a really high-quality impression, is heavy and very solidly built, even the supplied case could also be considered for professional users. The scope of delivery includes the case, the endoscope, the probe incl. 5 meter cable, an SD card with 32 GB, two holders and a clear manual.

Here are the specifications according to the article description:
- 4.3-inch color screen
- Resolution video:1280x720
- Photo resolution:1920x1080
- The probe is waterproof according to IP67 standard
- Probe diameter 5.5 mm
- Memory of the included SD card: 32GB (for photos/video recording)
- Battery memory 2600mAh (lithium battery)
- The probe has 8 LED lights

I've had the in use a few times now and can mention the following punks:
- The battery was almost fully charged on delivery, there is a USB Type-C charging cable included, but no charger per se. However, that is not a big deal - any USB charger can be used for this. So far, I have not managed to empty the battery in my few uses, so I cannot make a statement about the runtime yet.
- The endoscope cable is a bit stiff at first, but after unwinding it can be bent well into shape. However, you should not expect a 90° bend, it is definitely too tight for that. Insertion into e.g. empty tubes is a bit tricky, the cable holds its shape, but then adapts to bends in case of resistance. Here, as I said, some practice is necessary at the beginning. Ideally, you do the insertion in pairs, so one person can insert the cable, a second then holds the screen. Since it is IP67 rated, the cable could also be provided with a lubricant, e.g. soap or similar, to reduce frictional resistance.
- The lens head is a bit large with just under 5.5 mm, so it can be a bit tight at drain openings, for example. At our sink, I could not insert the head through the drain grate, I had to remove the siphon and then insert the cable over it.
- The front camera is designed for distances of max. 10 cm, the side cameras for max. 3 cm, that's enough for pipes and cavities, when checking my pellet silo is then due to the size of the image a little blurry, but it is perfectly sufficient to visually check the level, for example.
- The LEDs in the endoscope head make good light, even the darkest pipes are illuminated and you can see the surroundings well on the display. Unfortunately, the image quality is somewhat sobering when viewing the recordings on a PC, for example, despite Full HD photos and HD Ready videos.
- Nice feature: the scope of delivery also includes a hook and a magnet to fish out keys, screws, etc. from pipes.

Conclusion: It's a very robust device, which fulfills its tasks. I lack the comparison to other devices, but I am satisfied so far. The quality of the stored pictures and videos could have been better, but are still ok. I would give 4.5 stars, but then round up to 5 stars.