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Temperature humidity controller TRH-307-PM

TRH-307-PM (Panel Mounting)


TRH-307-FLP (Flameproof Enclosure)


TRH-307-WP (Weatherproof Enclosure)


The TRH-307-series is a programmable microcontroller based Temperature & Humidity Controller available in weatherproof, flameproof & panel mounting type enclosures.

Salient features:-

  • Excellent Long-Term Stability & Spike Protected
  • Two Relay O/Ps, One Each For Humidity & Temperature
  • Adjustable Time Delay For Operation Of The Relays
  • Two 4 – 20 mA O/Ps, One Each For Humidity & Temp.
  • Modbus RTU Protocol with Isolated RS-485 Communication
  • Highly Accurate, Fast & Reliable Sensing Technology
  • User Programmable With Password Protection
  • Easy Programming with Front Panel Push Buttons
  • No Calibration Required
  • 4 Digit Dual L.E.D Display : Upper Display For % RH
  • Lower Display For Temp


• Building management / HVAC Systems
• Clean Room Monitoring & Validation, in Pharmaceutical & Bioscience Laboratories.
• Climate Control in Museums, Libraries
• Climate Test Chambers
• Computer Server Rooms

• Energy Management & Energy Saving Systems
• Green Houses, Agriculture farms
• Healthcare, Hospitals, Shopping Malls
• Meteorological, Weather Forecast Applications
• Storage, warehouse and cold storage

Major Industries We Serve...