Simex TRS-04a Temperature-Humidity Sensor

Simex TRS-04a Temperature-Humidity Sensor

SKU: SID-022 designed for multipoint temperature and humidity measurement systems particularly where food products are manufactured and stored. Features Modbus RTU communications

  • Manufacturer: Simex
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The temperature and humidity transducer is designed for multipoint temperature and humidity measurement systems. In particular it is used for measuring conditions in rooms where food products are manufactured and stored. 

It features a temperature. sensor: semiconductor integrated circuit; measurement range -40°C ÷ +70°C; measurement error ±0,5°C;  and a humidity sensor: 0 ÷ 100% RH, accuracy ±2% RH @25°C 

Please Note - Do not exceed the temperature range of 0 - 70°C. The module should not be used where water vapour condensation occurs


  • temperature and humidity transmitter
  • RS-485 / Modbus RTU
  • Fixed 9600,8,N,1 baudrate

Manufacturer PartNo.TRS-04a-001

  • Power Supply: 9  to 12VDC, typically 10V
  • Power Consumption: 4.2mA (during Operation), up to 60mA (during Modbus transmission)
  • Communication Interface: RS-485 / Modbus RTU
  • Transmission Parameters: 9600 bit/sec..
  • Temperature Sensor:
    • Type: Semiconductor integrated circuit
    • Measurement Range: 0 to 70°C
    • Measurement Error: ±0.5°C
  • Humidity Sensor:
    • Measurement Range: 0 to 100% RH
    • Accuracy: ±2% RH @25°C, no condensation
  • Operating Temperature:  0°C to 70°C
  • Storage Temperature: -40°C to +85°C
  • Connection Cable: 4 conductors (2 supply conductors + 2 data transmission conductors)
  • Number of Modules In 1 Network: max. 127
  • Mounting to wall: 2 x M3 bolts
  • Protection Class: IP 65 (case), IP 30 (sensor)
  • Case Dimensions: 63 x 58 x35 (mm)
    • SKU
    • Weight
      0.15 kg
    • Dimensions (L x W x H)
      10 x 8 x 10 cm

Faulty Goods and Warranty

Where such goods have been supplied we undertake to repair or replace them as quickly as possible.Prior to returning faulty items, please contact us with a description of the fault as one of our engineers might be able to assist you by resolving the issue over the phone.
A Warranty form must be filled out and returned with any goods.

Our standard warranty period is 12 months from the date of purchase unless stated otherwise.

Other warranty periods:

Labjack Products: 5 Years
Atop Products: 3 Years
MeanWell Products: 3 Years
Terracom Products: 3 Years

Warranty is subject to us being satisfied that a defect was caused by defective workmanship or materials and was not caused by or was not substantially contributed to by other factors beyond our control including incorrect installation, alterations or modifications of the product not recommended by the manufacturer.

Returns Policy

If you are dissatisfied with our goods you may return them within 14 days of the dispatch date. Contact us for an authorisation and we will refund your purchase less shipping costs and restocking fees. All returned goods MUST be in AS NEW condition including ALL PACKAGING and DOCUMENTATION / MANUALS etc.

Please note:

  • The product returned will attract a 20% restocking fee.
  • The customer must pay the delivery costs.
  • Non standard, custom made or a specially manufactured or imported products are not returnable.
  • Semiconductors, books and software are not refundable

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