HPP270 Series for Hydrogen Peroxide, Humidity, and Temperature Measurement

The Vaisala PEROXCAP® HPP272 is a new, intelligent 3-in-1 measurement probe with both digital and analog outputs. It has been developed for manufacturers, service providers and end-users who use vaporized H2O2 for bio-decontamination processes. In addition to H2O2, the probe measures also temperature and humidity, referring to relative saturation and relative humidity. The product is part of the Indigo family.


  • Superior long-term stability and repeatability
  • Traceable calibration certificate
  • Corrosion-resistant stainless steel housing (IP65)
  • Compatible with Indigo Output Transmitters when preferred


IP rating 




Probe body
AISI316L stainless steel



2 × 4 ... 20 mA 3-wire current outputs


Hydrogen Peroxide

Measurement range

0 ... 2000 ppm


Relative Saturation

Measurement range
0 ... 100 %RS


Relative Humidity

Measurement range
0 ... 100 %RH



Operating temperature
+0 ... +70 °C (+32 ... +158 °F)
Storage temperature
-20 ... +70 °C (-4 ... +158 °F)


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