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Temperature / Humidity Transducer

Temperature / Humidity Transducer

TRH-300D( Duct Type)_TRH-300W (Wall Type)


Product ID: TRH-301. 302 303


TRH-300 series utilizes a thin-film polymer capacitor to sense relative humidity, and a thin-film RTD to accurately sense temperature 

TRH-301 Temperature transmitter
TRH-302 Humidity transmitter
TRH-303 Temp./humi. Transmitter
Fast, stable and accurate.
Watertight enclosure.
Compact size, Easy mounting.
Excellent Long-term stability.
Wide input voltage range.(12Vdc~40Vdc)
Available with either Current or Voltage output.
On-site, Two point calibration. (Zero and span)

  • Specification:
    • TRH-301, 302, 303 Measuring Range:
    • 0~100°C (-20~+80°C, 0~50°C, -40~+60°C available)
    • 0~100% RH
    • Accuracy: (at 25°C)
    • ±2% RH, ±0.3°C
    • stability:
    • Better than 1% RH per year (Typical)
    • Temperature compensation:
    • ±0.008% RH / °C (Effect @ 0% RH)
    • Response time:
    • < 15 seconds (90% at +25°C in moving air at 0.5 M/S )
    • Senosr Humidity: Thin-film capacitor
    • Temperature: RTD Pt 100 Ohm DIN, IEC751
    • Signal output: Humi: 4~20mA Two wire
    • Temp: 4~20mA Two wire (selectable)
    • Selectable output signal : 0 to 1 V, 0 to 5 V, 0 to 10 V or 1 to 5V. (option)
    • Working Voltage:12~36 VDC
    • Sensor protection: Sensor filter, Part No. TR-3066. (option )
    • ABS plastic watertight enclosure (IP 65)
    • Connection Liquid-tight nylon, cable Bushing: 5-10mm cables
    • Working ambient: -40~+85°C (-40~+185°F)
    • Weight: Approx. 150 g
  • Ordern Information:
    • Model :
    • TRH-301 Temperature transmitter
    • TRH-302 Humidity transmitter
    • TRH-303 Temp./humi. Transmitter
    • Shape (Mounting)
    • W : Wall Mount Type
    • D : Duct mount Type
    • S: Separated Type
    • Specify: Measuring ranges and output signal Current 4~20mA or Voltage (Option 0~1V, 0~5V, 0~10V, 1 ~5V )
  • CE
Order Information:
  • Minimum Order: Negotiable
  • FOB: Taipei, Taiwan

Contact Detail

Contact:Stanley Hwang
Address: 3F., No.12, Lane. 130, MinQuan Road., XinDian Dist., New Taipei City 23141, TAIWAN