ITEM NAME:ML8511 UV Detection UVB Ray Detector Sensor Tester Module Description: The ML8511 breakout is an easy to use ultraviolet light sensor The ML8511 UV (ultraviolet) Sensor works by outputing an analog signal in relation to the amount of UV light that’s detected This breakout can be very handy in creating devices that the user of sunburn or detect the UV index as it relates to weather.The ML8511 breakout is an easy to use ultraviolet light sensor. The ML8511 UV (ultraviolet) Sensor works by outputing an analog signal in relation to the amount of UV light that’s detected. This is categorized as part of the UVB (burning rays) and most of the UVA (tanning rays).