Nitrogen Dioxide Detector-Transmitter

  • Easy to install robust enclosure
  • Detection ranges 0...20 ppm NO2, 0...200 ppm NO2
  • Two analog outputs settable to 4-20 mA or 0-10 V
  • RS485 Modbus RTU digital interface
  • Relay option
  • Remote probe option


Nitrogen dioxide detector-transmitter E2648-NO2 is a member of new PluraSens® family of multifunctional measurement instruments.

Applications include underground parkings, boiler houses, kitchens, and other areas, where potentially toxic concentration of nitrogen dioxide can accumulate.

The instrument utilises novel fully calibrated and temperature compensated electrochemical gas sensor with excellent repeatability, stability and long lifetime.

To connect detector-transmitter to safety or building automation systems use two analog outputs and RS485 digital interface with industry standard Modbus RTU protocol. We recommend to set the output scale within 20-100% of the detection range.

Two relays with closing contact (option) may be used for remote signalling or ventilation control. For 0...20 ppm range default alarm set-points are 3 and 6 ppm. For 0...100 ppm range alarm set-points are user settable.

The device is available with either attached or remote sensor probe (default cable length is 3 m).