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RH+T ON-OFF Controller


HTC96 is a ON-OFF controller designed for relative humidity and temperature control applications with a humidity range from 0 to 100% RH and a temperature range of -20 to 100 °C. It receives input from Radix's SHT20, SHT30 (wall-mount) and SHT40(duct-mount) RH+T sensors which must be ordered separately and may be placed up to 50 meters from the unit. HTC96 features a two-color dual LED display; the upper indicates relative humidity and the lower, temperature while two additional LEDs indicate the status of each relay. Operators program up to 2 setpoints via membrane buttons on the front of HTC96. This controller has an accuracy of ± 2% RH and ± 0.5 °C. HTC96's electromagnetic relays trigger full-scale Hi and Lo alarms. It transmits one isolated output signal (either temperature or humidity) to other devices such as a Programmable Logic Controller (PLC) or Solid-State Relay (SSR). Signal isolation protects your devices and machines downstream of our instruments from damaging fluctuations in the input signal. This product features Radix's proprietary sensor-break indication technology.

  • RH and T inputs from sensors
  • Accuracy: ± 2% RH, ± 0.5 °C
  • Up to 2 setpoints for temperature and humidity
  • 85 - 265 V AC SMPS
  • Isolated retransmission output for temperature and humidity
  • User programmable
  • Sensor-break indication


  • humidity measurement
  • humidity control
  • Humidity



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