Delta P: air pressure delta

Delta P: air pressure delta

Monitor the operation of a ventilation box, air handling unit or building air system
  • Pressure difference: relative to the atmospheric pressure or between two different zones
  • 2 digital inputs / outputs:  for connecting to a PLC for tracing alerts or operating states
  • 1 analogue input 0-10V: for connecting to a sensor
  • Compatible with KARE© services
Example of use case


Measure a delta pressure:

  • Between the atmospheric pressure and the inside of the ventilation box

  • On both sides of an element (e.g.: filter)

Collect data of a 0-10V sensor

e.g. ammeter clamp for distinguishing a power failure


Controlling the AON outputs



On exceeding threshold(s)

Pressure difference or through 0-10V input

On digital input events

e.g.: indication of a machine fault


  • Periodic or event mode
  • Operating temperature range : -20°C /+70°C
  • Delta pressure : -500/+500Pa
  • Accuracy : +/- 25Pa
  • Casing : IP68
  • Dimensions : 200 x 63.5 x 34 mm
  • Replaceable battery
  • Integrated fastening system : DIN rail, tube, wall, collar
  • Zone : Sigfox : RC1 / LoRaWAN : EU863-870
  • Standards : Directive 2014/53/UE (RED)




  • ARF8283AA DELTA P LoRaWAN® EU863-870
  • ARF8283CA DELTA P Sigfox RC1
  • ARF8283EA DELTA P Wireless M-Bus 868 (Submitted to MOQ)


Previous versions: to find all the documentation related to previous versions of this product, click here.