Features Industrial-Grade Chip and High Precision Probe: Ensures excellent reliability, high precision, and interchangeability for accurate temperature and humidity monitoring. RS485 Hardware Interface with Lightning Protection: Ensures protocol layer compatibility with standard industry Rtu protocol for secure and reliable data transmission. Automatic Output via RS485: Simplifies data retrieval through serial debugging tool, providing seamless access to temperature and humidity readings. Wide Operating Voltage and Low Power Consumption: Operates at 9-36v with a maximum power of 0.3W, ensuring efficient energy usage and flexibility in installation. High Accuracy in Wide Operating Conditions: Delivers precise temperature and humidity measurements across a range of environmental conditions for reliable monitoring. Specification: Working voltage: 9-36V Maximum power: 0.3W Operating temperature: -20 ℃ ~60 ℃, humidity 0% RH~80% RH Accuracy: Temperature ± 0.3 ℃ (25 ℃), humidity ± 3% RH (25 ℃) Output interface: RS485 (standard Rtu protocol) Device address: can be set to 1-255, the default is 1 Baud rate: 9600, 8 bits of data, 1 stop, no parity Size: as the picture Weight: 49g Wiring instructions: Yellow: power supply"+" Black: power supply "-" Red: 485-A Green: 485-B Package Included: 1 x RS485 Temperature and Humidity Transmitter Sensor Package List