Low Cost RS485 Temperature & Humidity Sensor

This is a low cost temperature and humidity sensor that comes with RS485 interface (with lightning protection design). It supports Modbus RTU protocol which compatible with the industrial PLC or HMI. It is suitable for learning and experimenting on the Modbus RTU.

Specifications:

• DC power supply: DC 5V-30V
• Output signal: RS485
• Temperature range: -40℃ to 60℃ ±0.5℃
• Humidity range: 0% to 80% ±3%
• Temperature resolution: 0.1℃
• Humidity resolution: 0.1%RH
• Power consumption: ≤0.2W
• Communication address: 1-247 (default 1)
• Baud rate: default 9600, 8-bit data
• Size: 45mm x 71cm x 25mm
• Can use with standard DIN rail