Duct Mounting Humidity Temperature Monitor

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The duct mounting humidity and temperature transmitter (AI-RHTx-D) is suited for mounting in HVAC ducts in a rugged IP65-rated plastic enclosure with an adjustable duct clamp. The instrument features a polymer capacitive sensor that reliably measures temperature and humidity with high accuracy. The capacitive basic sensor is not affected by condensation & gives top-of-the-line long-term stability. The AI-RHTx-D is a high accuracy solution with customizable measuring ranges. The duct transmitter provides dual 4-20mA outputs, 1 each for humidity and temperature.

Applications include humi-temp monitoring in offices, retail spaces, educational institutions, industries in HVAC systems and is well suited with 4-20mA output for the monitoring of smart buildings and smart industrial applications.

Ace Instruments' product range enables users to ensure complaince with global building standards, including LEED, WELL and GRIHA green building. Our products and manufacturing processes are in compliance with global standards - CE and ISO 9001:2015


  • Polymer capacitive sensing for humidity and temperature measurement
  • Durable ABS duct mounting plastic enclosure
  • No effect of condensation on output & stability
  • Optional display




Measuring Range: 0-50°C (Customizable)
Accuracy: ± 0.5°C


Measuring Range: 0-95%RH
Accuracy: ± 1.8%RH


Capacitive polymer sensing for humidity and temperature


4 Wire output, 4-20mA, 1 each for temperature & humidity

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