IP54 Temperature and Humidity Sensor TSH330

IP54-Rated Environmental Monitoring | Temperature & Humidity

The TSH330 is an IP54-rated temperature and humidity sensor equipped with an RS-485 interface, compatible with the Modbus RTU protocol. It employs a unique capacitive element for humidity measurement and a bandgap element for temperature sensing, both precisely interfaced with a 12-bit analog-to-digital converter for exceptional measurement precision. Designed for applications demanding IP54 protection, this sensor is an excellent choice when used with Teracom Ethernet or cellular controllers.

TSH330 efficiently communicates over the RS-485 interface, with the flexibility to assign different Modbus addresses to multiple sensors on the same bus.

Encased in an IP65-rated housing, it guards against dust and water sprays. Convenient cable installation is enabled through the cable gland with a locknut and screwless terminal block.


  • 3.0% relative humidity accuracy
  • 12-bit humidity measurement resolution
  • 14-bit temperature measurement resolution
  • Outstanding long-term stability
  • Firmware updates via the interface
  • Unique 64-Bit serial numbers for multi-sensor support


  • Fleet management systems
  • Environmental quality monitoring and assessment
  • Humidity and temperature monitoring for vineyards, greenhouses, etc.
  • Humidity and temperature logging for telco facilities
  • Server room and data center humidity and temperature monitoring
  • Humidity and temperature monitoring in building management systems (BMS)

The TSH330 temperature and humidity sensor is compatible with:

  • Temperature and humidity data logger TCW210-TH
  • Energy monitoring module TCW260
  • GSM-GPRS remote IO module TCG140
  • 4G LTE universal IO module TCG140-4

Technical Properties:

  • Physical characteristics
  • Dimensions: 65.6 x 99 x 36mm
  • Weight: 70g
  • Environmental limits
  • Operating temperature range: -20 to 60°C
  • Operating relative humidity range: 10 to 90% (non-condensing)
  • Recommended operating range is 20% to 80% RH (non-condensing) over –10 °C to 60 °C. Prolonged operation beyond
    these ranges may result in a shift of sensor reading, with slow recovery time. It is possible that in some weather conditions
    the moisture in the air in the filter cap may condense. This may result in a shift of sensor reading, with slow recovery time.
  • Long term drift typical: ±0.25%RH/year, ±0.05°C /year
  • Higher drift might occur due to contaminant environments with vaporized solvents, adhesives, packaging materials, etc.
  • Storage temperature range: -20 to 60°C
  • Storage relative humidity range: 10 to 90% (non-condensing)
  • Ingress protection: IP54
  • Power requirements
  • Input Voltage (including -15/+20% according to IEC 62368-1): 4.5 to 26VDC
  • Input Current: 5mA@5VDC
  • Humidity measurements
    Accuracy (min): ±3.0%RH (in 20 to 80 %RH range)
    Accuracy (max): ±5.0%RH (in 10 to 90 %RH range)
  • Resolution: 0.1 %RH
  • Temperature measurements
  • Accuracy (min): ±0.4°C (in -10 to +60°C range)
  • Accuracy (max): ±0.6°C (in -20 to +60°C range)
  • Resolution: 0.1°C
  • Interface
  • Response time ≤ 50ms
  • Master response time-out ≥ Response time + Answer time.
    The answer time depends on the number of bits and the baud rate
  • Warranty
  • Warranty period: 3 years