UV sensor (C) is an I2C digital UV sensor expansion board equipped with the LTR390-UV-01 sensor. It can measure ultraviolet and visible light detectable by the human eye and output light intensity data. The UV sensor (C) features sensitive detection, fast response, and a compact design. The core LTR390-UV-01 sensor is integrated into the expansion board for easy integration into various devices. The LTR390-UV-01 sensor is capable of measuring ultraviolet and visible light. It includes a built-in ADC that directly outputs light intensity via the I2C interface, providing resistance to noise. It supports interrupt output with programmable upper and lower thresholds. The onboard level conversion circuit is compatible with 3.3V and 5V operating voltages. Sensor: LTR390-UV-01 Response wavelength: 280 - 430nm Communication interface: I2C (fixed address: 0x53) Operating voltage: 3.3V / 5V Aperture size: 2.0mm Color: As shown in picture Material: PC Package Contents: 1 x UV Sensor 1 x Cable (appearance may vary slightly due to different product batches, but does not affect functionality) Note: Light reflection and differences in display screens may cause slight variations in the color of the item shown in pictures. Measurement error is +/- 1-3cm. Only the items listed above are included; other accessories are not included.