Contact Us HUMICAP® Humidity and Temperature Probe HMP155 Vaisala's HUMICAP® HMP155 is a plug-and-play sensor that has excellent stability and withstands well even in harsh environments. The probe provides reliable humidity and temperature measurement and it is designed specifically for demanding outdoor applications. Features Vaisala HUMICAP®180R sensor - superior long-term stability Optional warmed humidity probe and chemical purge USB-connection cable for service use Fits in DTR13 and DTR502/503 radiation shields and also in the Stevenson screen Weather-proof housing IP66 Optional fast temperature probe Different output possibilities: voltage, RS-485, resistive Pt100 Applications: meteorology, aviation and road weather, instrumentation + Show more Key Benefits Long-term stability and easy maintenance The probe can be calibrated using a PC with a USB cable, with push buttons, or with the MI70 indicator. Durability Protected from default with a sintered Teflon filter, the HMP155 has the maximum build-in protection against liquid water, dust, and dirt. Warmed probe The sensor head is warmed continuously to keep the humidity level inside it below the ambient level, which reduces the risk of condensation forming on the probe. Downloads Datasheet: Humidity and Temperature Probe HMP155 (519.05 KB) Datasheet: DTR13 and DTR15 Radiation Shields (417.26 KB) Manual: HMP155 User's Guide in English (1.56 MB) Manual: HMP155 Quick Reference Guide, Multilingual (350.27 KB) Order Form: HMP155 Order Form Global (98.18 KB) Application Note: Choice of outdoor humidity sensors critical to economical free cooling system (204.62 KB) Application Note: Measuring Humidity in High Humidity Environments (284.96 KB) Application Note: Eight Things to Consider When Choosing Outdoor Humidity Instruments (371.3 KB) Application Note: Outdoor Wet Bulb Temperature - The Defining Measurement for Cooling Tower Operations (262.71 KB) Application Note: How to Choose the Right Instrument for Measuring Humidity and Dew Point (565.13 KB) Application Note: Measuring Humidity and Dew Point in Environments with Chemical Contaminants (577.15 KB) Vaisala News Article: New Relative Humidity and Temperature Probes for MI70 Indicator (109.98 KB) All downloads Customer Stories Success Story Vaisala HUMICAP® Sensor for Measuring Relative Humidity Until the early 1970s, hair hygrometers were commonly used in radiosondes. At that time, reliable humidity measurement was an unresolved... Read more Services Standard Calibration Accredited Calibration Custom Calibration Repair Service Calibration Care Agreement Need support? Need to calibrate? Sign up for news Contact us
Success Story Vaisala HUMICAP® Sensor for Measuring Relative Humidity Until the early 1970s, hair hygrometers were commonly used in radiosondes. At that time, reliable humidity measurement was an unresolved... Read more
