Temperature and Humidity Modbus RS485 Transmitter

A Humidity and Temperature Meter with Modbus RS485 is an industrial-grade sensor/transmitter used to continuously monitor ambient temperature and relative humidity, and transmit data via the Modbus RTU protocol over RS485. Ideal for HVAC systems, greenhouses, storage units, server rooms, and industrial automation.

Parameter Specification

Temperature Range -40°C to +80°C (customizable)

Humidity Range 0% to 100% RH

Accuracy (Temp) ±0.3°C (typical)

Accuracy (Humidity) ±2% RH

Output RS485 (Modbus RTU)

Power Supply 9 – 30 VDC

Baud Rate 9600 / (configurable)

Protocol Modbus RTU over RS485

Enclosure IP65-rated industrial housing (wall-mount or duct-mount)

Response Time < 2 seconds

Operating Conditions -20°C to +60°C, 10–95% RH (non-condensing)

Mounting Wall / Duct / Panel options