HT829, HT839

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Product Bar End

HT829, HT839

Minco 1% and 2% Wall, Duct and OSA Humidity Transmitters HT829, HT839

Minco 1% and 2% Wall, Duct and OSA Humidity Transmitters


The Minco Model HT829 Relative Humidity Transmitter measures 0% to 100% RH over a range of -10° to 185°F (-23° to 85°C). The standard two-wire, 4-20 mA output provides low-cost space, duct, and outdoor monitoring or process and industrial building control. A temperature sensor built into the integrated circuit provides temperature compensation over the full temperature range. The HT829 Series is field-rangeable for field recalibration. These transmitters are proven performers for use in Building Automation Systems, BAS, and HVAC applications.


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No accessories found
  • Temperature-compensated IC sensor
  • One-point field calibration, RH or temperature
  • Weatherproof housing for OSA and duct
  • 1% or 2% RH accuracy
  • Sintered filter


1% units:±1% from 10& to 80% RH

2% units: ±2% from 0% to 90% RH

Time Constant:50 sec in slow-moving air

Supply Voltage:9.4 VDC min to 35 VDC max

Signal Output:Two-wire, 4-20 mA over 0% to 100% RH @ 730Ω and temperature (HT839)

Sensing Technology:Capacitive monolithic IC (Humidity)

Sensor Protection:Sintered filter (Humidity)

Calibration: One-point adjustment

Adjustments:Zero, noninteracting

Operating Temperature:

 :Room -10° to 150°F (-23° to 66°C)

 :Duct/OSA -10° to 185°F (-23° to 85°C)

Wiring Terminations:Nonpolar terminals, connect either way (22-14 AWG wire)



 :Duct 10.3″L x 2.8″W x 4.5″D (26.2 x 7.1 x 11.4 cm), 8.1″ (20.6 cm) probe length, 0.38″ (0.97 cm) ∅

 :OSA 8.6″L x 2.8″W x 2.3″D (21.8 x 7.1 x 5.8 cm), 4.1″ (10.4 cm) probe length, 1.3″ (3.3 cm) ∅


 :Room 0.19 lb (0.084 Kg)

 :Duct 1.20 lb (0.55 Kg)

 :OSA 1.20 lb (0.55 Kg)

Warranty:3 years