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Modbus RTU Temperature & Humidity Sensor

The TSH300 is a Modbus RTU Temperature & Humidity Sensor, designed for accurate monitoring of temperatures in the range of -20 to +60°C. Up to 32 sensors can be connected back to a Modbus Master device. It features two RJ45 connectors for easy daisy-chaining on an RS485 Modbus, making it a robust solution for industrial temperature sensing.

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TSH300 Modbus RTU Temp & RH Sensor

Description

The TSH300 is an Modbus RTU temperature & humidity sensor that operates without an external power supply, drawing power directly from its interface. This makes it an excellent choice for precise temperature and humidity monitoring. The sensor integrates both its basic sensing elements and signal processing capabilities, providing a fully calibrated digital output for superior measurement quality. It’s particularly well-suited for applications demanding high accuracy in environmental conditions, such as server rooms, offices, and facilities storing drugs or food, and is also ideal for smart office systems.

The TSH300 supports the widely used Modbus RTU protocol, making it compatible with many Building Management Systems (BMS) and Industrial Automation Systems (IAS). Each sensor comes with a unique serial code, allowing multiple units to be connected and supported on the same RS485 bus. For streamlined installation, the sensor features two RJ45 connectors, enabling easy daisy-chain wiring using standard UTP/FTP patch LAN cables. A separate accessory is also available for convenient installation in 19-inch cabinets.

Features

  • RS485 interface supporting up to 32 nodes
  • RJ45 Port for easier Modbus Daisy-chaining.
  • LED indicator for communication status
  • Configurable bitrate and other communication parameters
  • Firmware updates via the RS-485 interface.

Applications

  • Humidity and temperature logging in server rooms and data centers
  • Environmental quality monitoring and assessment
  • Monitoring in building management systems (BMS)
  • Humidity and temperature logging for mobile operator facilities, vineyards, greenhouses,
    and more.

Specifications

Temperature Humidity
Operating Range*: -20 to +60°C 10 to 90%RH
Tolerance ±0.4°C (1.0°C Max) ±3%RH (5%RH Max)
Long-Term Drift (Typical): 0.05°C 0.25%RH
Response Time: ≤50ms
Power Supply: 4.5 to 26vDC @ 5mA
IP Rating: IP20
Dimensions: 85 x 35.1 x 23.5mm
Connectors: 2 x RJ-45 in parallel

 

 

Product

Ref

Price

Product Description

TSH300V3

£60.95

TSH300 Version 3 Modbus Digital Temperature and Humidity Sensor. Temperature Range -20 to +60°C with accuracy ±0.4°C  and Relative Humidity range 10-90%RH with ±3%RH accuracy. RS485 Modbus RTU interface via dual RJ45 ports, suitable for easy daisy-chaining. IP20 housing with 85 x 35.1 x 23.5mm dimensions. Power Supply 4.5 to 26vDC (5V @ 5mA).

Cab_1m_RJ45

£1.25

1m RJ45 cable for the Ethernet devices from Teracom.

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