SRC-H1T - Indoor


Active humidity transmitter and temperature sensor for indoor mounting

The SRC-H1T measures relative humidity with a unique capacitive sensor element. The applied measuring technology guarantees excellent reliability and long term stability. Ranges can be defined by using a programming tool.

The sensing element for the temperature is either a glass packed thermistor with a negative temperature coefficient, a platinum film or nickel thin layer based probe. Its resistance changes according to the temperature. The change follows a specified curve.


  • Indoor humidity and temperature measurement for heating, ventilation and air conditioning applications
  • Supervision of critical humidity and temperatures


  • Indoor humidity and temperature measurement
  • For AES4: Sensor reconditioning function against contamination
  • For AES4: Anti-Creep function for high humidity environments
  • Replaceable sensor element
  • Minimum and maximum value memory
  • Optional alternative signal ranges programmable
  • Selectable averaging signal
  • Optional external display (OPU-S)
  • Status LED


 Item name  Item code  Description
 SRC-H1Tn10-A3  40-300141  Indoor humidity transmitter and temperature sensor element AES1-HTn10-A3 (3% RH)


OPU-S - Remote Display
Operation and display for intelligent transmitters
AES3-HTx / AES4-HTx - Humidity/Temperature + passive Sensor
For indoor, outdoor and duct humidity/temperature transmitters with additional passive temperature element


Operation Manual

Install Sheet

Application Notes