Features 1、The product uses high accuracy industrial-grade chips, with excellent reliability 2、Adopt high-accuracy STH20 temperature and humidity sensor with high interchangeability 3、RS485 hardware interface (with anti-thunder protection design), the protocol layer is compatible with standard industrial Modbus-Rtu 4、Standard 35mm rail installation, small and exquisite appearance, can be directly installed on standard DIN35 rail 5、Professional design and fine workmanship, easy to install and remove Specification Item Type: Temperature Humidity Transmitter Power Supply Voltage: DC5-30V Output Signal: RS485 Communication Protocol: Modbus-Rtu protocol or custom common protocol Communication Address: 1 ~ 247 can be set, default is 1 Baud Rate: Settable, default 9600 Temperature Accuracy: ±0.5℃(25℃) Humidity Accuracy: ±3%RH Temperature Range: -40 ~ 60℃ Humidity Range: 0 ~ 80% RH Temperature Resolution: 0.1℃ Humidity Resolution: 0.1%RH Equipment Power Consumption: ≤0.2W Size: Approx. 65 x 46 x 28.5mm / 2.6 x 1.8 x 1.1in Package List 1 x Temperature Humidity Transmitter