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HT1D Series

Humidity Temp Duct
Higher Reliability, Faster Installation, Superior Accuracy | Sense the Difference

HT1D Humidity/Temp Duct

Rugged Enclosure HT ribbon element for harsh enviornments LCD with adjustable offsets menu State of the art measurement and calibration Probe provides active airflow readings Options with temp transmitter version Buy American Act Certified

2% or 3% accuracy (NIST certification options)
0-5V/10V and 4-20mA RH/Temp (thermistors optional)
LCD display with field calibration menu
Field replaceable element

  • 2% or 3% RH versions with field replaceable sensor
  • Switch selectable 5V/10V and 4-20mA RH/T transmitter outputs
  • Thermistor outputs for temperature optional
  • Field calibration. LCD and push-button menu allows easy adjustment of calibrated RH value as needed to maintain certification.
  • Field replaceable sensor—without disturbing conduit
  • On-board temperature compensation for RH. Eliminates temperature coefficient errors and achieves excellent measurement accuracy, high repeatability, and offset stability. 
  • State-of-the-art testing facilities. Certification options: 8-point (NIST traceability—consult factory)
  • Industry-leading 7-year warranty/ 2-year replaceable element warranty 


The HT1D Series is designed with both the engineer and field technician in mind. The HT1D Series combines excellent stability with reliable operation in 2% or 3% RH accuracy options. Optional temperature transmitters, RTDs and thermistors add further flexibility when ordering. The standard LCD and field replaceable elements make the initial installation and future service a breeze.


  • HVAC room humidity and temperature measurement and control
  • Replaceable element is ideal for difficult environments such as swimming pools
  • Facilitating compliance with ASHRAE 62.1 standard for air quality
  • Indoor air comfort and control in HVAC systems
  • Maintain healthy air quality, minimize mold and other contaminants
  • Museums, hospitals & other critical environments
  • Offices, conference rooms, & indoor public areas
  • Industrial process control environments
Product Price Quantity
$165.36 /


All prices shown are excluding tax unless otherwise specified.