UVM30A frequency response curve

[jancelot]

Bought the UVM30A UV sensor from banggod for Arduino, which claims to have a response wavelenght of 200~370nm. Since it's a cheap product, I'm not sure how goot the frequency response is, in case frequency response is not flat. The pdf provided by Wildtronics has a graph correlating UV index with output voltage in mV, but no mention to how flat is the frequency response in the specified range.

https://www.wiltronics.com.au/wp-content/uploads/datasheets/ARD2-2062.pdf

Do you have any further idea? There are much more expensive UV meters like the Omega HHUV254SD, which is an independent handhelt meter, and surely there are some big differences with the Arduino one.

[jancelot]

Wiltronics doesn't have any further information. Apparently they are just resellers of a chinese-made product. Here's further information I could find:

• UVM-30A UVA/UVB sensor
• UVM-30 Datasheet - UV sensor suitable for Weather Stations