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.

K&F Concept 3G/4G Camera:
Fantastic image during the day and at night with white LED or IR. In addition, the camera can actually do without internet or power connection. Smooth operation when watching videos. Detected movements are communicated via push.
The software still has room for improvement

Very good. It polarizes properly, easy to cut out and glue onto the light bulb and there is plenty left over (after cutting out what is required for a medium sized bulb that I use with my mobile phone). They are two sheets, slightly smaller than the size of a sheet, covered in protective plastic that must be removed before use.

It's perfect for my LED bulb, just cut out the sheet a little and it's perfect

Easy to install, really obvious setup and the camera seems to be working fine.
However, the night vision is a bit weak. Although it works in the dark, the IR LEDs may be too much for the CCD to manage.
You get a picture but I would defy anyone to pick out details and unless your brickwork is the usual red variety it will swamp. I've decided to put some tape on a coupe of the IR to see if that helps. It could be better if there is a way to dim the IR, but for the price paid it's really a steal. Solar charging works as advertised, even on cloudy days.

There is quite a long latency from camera to screen, I suspect most don't worry about that and detection works well and no false positives (so far).

All in all a very good camera for the price!

K&F Concept 3G/4G camera:
Fantastic picture during the day and at night with white LED or IR. In addition, the camera can actually do without an internet or power connection. Smooth operation when watching the videos. Detected movements are communicated via push.
The software still has room for improvement

Honestly, I can't find a better home security camera for the price