This UV sensor uses a GUVA-S12SD chip to detect UV radiation levels from 200-370nm and outputs a linear analog voltage. It has a fast response time, small size, and can be powered at 5V or 3.3V, making it compatible with Arduino systems. The sensor allows monitoring of UV index based on WHO standards to measure environmental UV levels for applications like UV lamp monitoring and plant growth.

1. Use UV Sensor with Arduino | ISweek - Industry sourcing
This UV Sensor (Gadgeteer compatible) used GUVA-S12SD chip is suitable for detecting
the UV raditation in sunlight. It can be used in UV Index Monitoring, DIY project, UV-A
Lamp Monitoring, Plants growing Environmental monitoring…etc.
It can detect the UV wavelength of 200-370nm, fast response, linear analog voltage
signal output. Small size, easy for installing. With the diagram of the world health
organization UV index grading standards, you can know the UV index from the sensor
directly.
This sensor can be powered with 5V or 3.3V which makes it compatible with both
pcDuino, Arduino DUE 3.3V system and standard Arduino UNO / Mega 5V system.
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