The Vaisala PEROXCAP® Hydrogen Peroxide, Humidity, and Temperature Probe HPP270 series probes HPP271 and HPP272 are designed for demanding hydrogen peroxide bio-decontamination where repeatable, stable, and accurate measurement is essential. HPP270 series probes are suitable for a variety of applications such as isolator, material transfer hatch, and room bio-decontamination. The new, basic probe option HPP271 is for measuring only H2O2 vapor concentration whereas the renewed advanced option HPP272 provides all the parameters you need to measure during bio-decontamination processes: hydrogen peroxide vapor, temperature, and humidity as relative saturation and relative humidity. Now also dew point and vapor pressure measurements are possible. The probes can be used with the optional Vaisala Indigo transmitters or as standalone probes. For easy-to-use access to configuration, calibration, and adjustment the probe can be connected to Vaisala Insight PC software.