Special light sensors are needed to special applications. This can be the case for your. DFRobot SEN0644 RS485 Waterproof Ambient Light Sensor is a completely waterproof digital ambient light sensor that measures the intensity of light in different environments with a detection range of 0Lux to 200KLux. The DFRobot SEN0644 uses the standard Modbus-RTU 485 communication protocol and a wide 5VDC to 32VDC voltage power supply. The sensor can be used with the TTL-to-RS485 expansion board (DFR0259) or the Gravity: Active Isolated RS485-to-UART Signal Adapter Module (DFR0845) to read the light value on the Arduino UNO R3 or to quickly build a test environment. SEN0644 features a simple wiring method and is easy to use. With an IP68 waterproof rating, the ambient light sensor can be completely immersed in water without damage. The DFRobot SEN0644 RS485 Waterproof Ambient Light Sensor is suitable for various indoor and outdoor harsh environments, such as weather stations, vegetable greenhouses, outdoor lighting, flower cultivation, factory workshop lighting, and automotive smart lights.

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