UV sensor (c) is an I2C digital UV sensor expansion board equipped with ltr390-uv-01. It can be used to measure ultraviolet and visible light of human eyes and output light intensity data. UV sensor (c) has the characteristics of sensitive sensing, fast response and small volume. Its core sensor ltr390-uv-01 is integrated in expansion board, which can be easily integrated into the equipment. Ltr390-uv-01 can be used to measure ultraviolet and visible light of human eyes Built in ADC can directly output light intensity through I2C interface, which is not easy to be by noise. It has the function of interrupt output and programmable upper and lower threshold The on-board level conversion circuit is compatible with the working level of 3.3v/5v Sensor: ltr39o-uv-01 Response wavelength: 280 - 430nm Communication interface: 12C (fixed address: 0x53) Working voltage: 3.3v/5v Fixed aperture: 2.0mm Colour:As Shown Material:PC Package Contents: 1 x Sensor 1 x Cable(Due to different product batches, the appearance , which does not affect the use) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.