This time, the development is not made by a 3rd party, but by me for AlGaN,a UV sensor maker.
This is a ultraviolet measurement device, capable of not only measuring a light source,but also comparing 2 sensors.
The following picture shows the calibration screen.
The device works with a lithium-ion battery, 550 mAh, which allows it to work continuously
for several days even though no special care has been taken for minimizing the power consumption yet.
The next picture shows how handy it is.