[SR123]

Hello,

Once again thanks for sharing pictures of your assembling, they can be very useful to others users, giving ideas...
Out of curiosity, do you have the specs or a link to a data sheet for the UV sensor you are using?
Thanks.

Rgs
Werk_AG

The item was from Ebay - https://www.ebay.co.uk/itm/223557457547

The only data is from the Ebay page, Product descripton:
Operating Voltage: DC 3-5V
Output voltage: DC 0-1V
Test accuracy: ±1UV INDEX
Current: 0.06mA(typ), 0.1mA(max).
Response wavelength: 200nm-370nm
Work temperature: -20℃~85℃
Detect UV wavelength:200-370nm
PCB size:28mm*12mm*10mm
Color;Black and Blue

Package included：
1PCS x UVM-30A UV Ultraviolet Detection Ray Sensor Module 3V 5V for Arduino

Thanks,