Vaisala HUMICAP Humidity and Temperature Probes

The Vaisala HUMICAP Humidity and Temperature Probes HMP4, HMP5, HMP7 and HMP8 and the Temperature Probe TMP1 are part of the company’s Indigo product family. They are a set of interchangeable smart probes for humidity measurements in demanding environments.

The probes share several key features. The most dominant feature is their interchangeability, which minimises the downtime associated with maintenance. This, together with the probes’ accuracy and stability, brings high value to customers’ businesses as they reduce costs and resource needs. The probes’ interchangeable nature also makes calibration and replacing them convenient.

All the HMP probes are equipped with the HUMICAP R2 composite sensor which gives corrosion resistance to the sensor particularly in acidic environments. All of the released probes are resistant to dust and most chemicals, and their smooth surface is easy to clean.

The new Indigo family members are compatible with the company’s Insight PC software, which allows convenient set-up, diagnostics and field calibration. The probes can also be used without Indigo host device through Modbus protocol.

They are designed for applications which involve pressure, temperature, constant high humidity or rapid changes in humidity, including drying and test chambers, combustion air and other humidifiers and meteorological measurements where measurement performance and chemical tolerance are essential.

In order to meet the demands of various applications, the series includes several options: the HMP4 is designed for high-pressure installations up to 100 bar; the HMP5 is designed for high-temperature applications; the HMP7 is for high-humidity applications; the HMP8 is for pressurised installations up to 40 bar and pressurised applications; and the TMP1 with immersion-proof probe is designed for demanding temperature measurements in industrial applications.