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RH+T Transmitter

SC806 (Flameproof - Wall Mount)

SC806 is a high-performance 2-wire Relative Humidity and Temperature (RH+T) Transmitter for use in hazardous environments. It is factory configured for two relative humidity outputs (2 x RH), two temperature outputs (2 x T), or one output each for relative humidity and temperature (1xRH + 1xT). With its integral relative humidity and temperature sensor, the transmitter is inside a wall-mounted flameproof (certified for gas groups I, IIA, IIB) enclosure with an IP66 rating; completely dust proof and can withstand temporary flooding. This transmitter is accurate to 3% for relative humidity and within 0.5 °C for temperature. SC806’s microcontroller technology linearizes the input which makes control more effective. It is powered by a 4.5 - 32 V DC loop supply and has a loop drop of no more than 4.5V, which is remarkably low amongst such products. This product features Radix's proprietary sensor-break indication technology.

  • True 2-wire operation
  • Accuracy : ± 3% RH, ± 0.5 °C
  • 2 x 4-20 mA outputs
  • Software calibration - no trimpots
  • 4.5-32 V DC loop supply
  • IP66, rugged construction
  • Wall mount
  • Sensor break indication


  • humidity measurement



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