FRHTF – Relative Humidity + Temp Indicator For Hazardous Locations

Model : FRHTF
Sensor Type : Polymer sensing for Temperature Capacity polymer sensing for Relative humidity
Range : 0.0 to +60.0°C typical for Temperature (Any other as per requirement)
Output (Optional ) : 2x 4-20mA for both temperature & humidity Optional RS 485 Modbus Protocol Communication
Resolution : Fixed 0.1 for both Temperature & Relative humidity
Accuracy : 1) ± 0.25° C for -30.0° to +50.0° Deg. C for Temperature 2) ± 1.8% for 10
to 95% RH for Relative humidity +/-2% for all other ranges.
Display : 2 X 4 Digit RED LED Display of Height 0.5” or 1” (1 Each for Humidity & Temperature)


Description :

The Clean Room Monitor is designed to measure the vital parameters of Temperature, Humidity & Differential Pressure in CleanRoom Applications in Hazardous locations.

The Model FRHTF is designed for minimum cabling & easy flush mounting in Modular Wall or Brick Walls of Clean Rooms. The sensors for both the parameters are integrated inside for ease of use & installation.

The Model FRHTF is optionally available for Remote Sensors for humidity & temperature. Both parameters are displayed on the instrument using external or Internal transmitters For Combined Humidity & Temperature.

Standout features in the Clean Room Monitor include integrated buzzer for parameter violation indication, individual LED for process violation, buzzer enable/disable feature & buzzer delay option and any other customized solution.

The instruments find immense use in Pharma Clean Rooms, APIs, Bulk Drugs, Electronic Hardware Manufacturing Plants, Test Plants, Green Houses, etc. Easy integration to Building Management Systems (BMS ) & SCADA interfacing allow easy set up & great control.

Additional information

Supply Voltage

: 24VDC / 230VAC


: Clean Room Modular Wall Flush Mounting with External Humi-Temp Probe with 2 mtrs. Extension Cable ( Extendable upto 80 mtrs.) OR
Clean Room Modular Wall Flush Mounting with Built- In Humi-Temp Probe on Front Flush Plate

Sensor Housing

: Shielded Extension Cable.

Cable Connection

: Terminal Connectors for Sensor Input & Power Supply Input Suitable for cable upto 1.5 OR
Terminal Connectors for Power supply & RS 485 Communication only


: Stainless Steel Front Flush Plate for Clean Rooms, Diecast Aluminium Body Enclosure for Modular Wall Fitment


: 500g. Approx

Agency Approval


Calibration Protocol