Datasheet Contact Us Buy Now Relative Humidity and Temperature Probe HMP8 for pressurized processes Image Vaisala HUMICAP® Humidity and Temperature Probe HMP8 is designed for pressurized applications in compressed air systems, refrigerant dryers, and other pressurized industrial applications where easy insertion and removal of the probe and adjustable installation depth into the pipeline are needed. The HMP8 is part of the Indigo product family and compatible with Indigo500 and Indigo200 series transmitters and free Insight PC Software. Click here to download bid specs for USA. Features RH accuracy up to 0.8 %RH, Temperature accuracy up to 0.1 °C (0.18 °F) Temperature measurement range -70 ... +180 °C (-94 ... +356 °F) Sensor purge provides superior chemical resistance Probe installation depth can be freely adjusted and probe can be hot-swapped from pressurized pipelines with an installation valve Modbus RTU over RS-485 Plug & play compatible with Indigo™ series of transmitters Traceable calibration certificate: 5 points for humidity, 1 point for temperature + Show more Key Benefits Proven Vaisala HUMICAP performance Vaisala is the original innovator of the thin-film capacitive humidity measurement technology, which has now become the industry standard in humidity measurement. Chemical purge minimizes effects of contaminants In environments with high concentrations of chemicals and cleaning agents, the chemical purge option helps to maintain measurement accuracy between calibration intervals. Flexible connectivity The probe is plug and play compatible with Vaisala Indigo series transmitters, can be used as a standalone digital Modbus RTU transmitter, or connected to Vaisala Insight™ PC Software. Watch the video Vaisala Indigo Family humidity and temperature probes Downloads Datasheet (558.03 KB) HMP8 Relative Humidity and Temperature Probe Download the Datasheet Comparison table: Vaisala HUMICAP Indigo and HMT330 Humidity and Temperature Series Comparion Table (138.1 KB) Comparison table: Comparison of Indigo transmitters and Indigo compatible probes for humidity applications (1.47 MB) Datasheet: Insight PC software Brochure: Selecting the right filter for humidity instruments Bid Specification: HMP8 Bid Specs, Humidity and Temperature Probe for Pressurized Processes (1.12 MB) Order Form: HMP8 order form global (275.86 KB) Brochure: Vaisala Indigo Family brochure (1.5 MB) Datasheet: Indigo200 Series Transmitters For Vaisala Smart Probes All downloads Product Resources Humidity calculator Read more Indigo500 series dual-probe support Read more What is a smart measurement probe and what makes it special? Read more Services Standard calibration Accredited calibration Repair service Need support? Need to calibrate? Sign up for news Contact us