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Sensors & Transmitters
   Data Acquisition
   pH and ORP
   Relative Humidity / Dewpoint
     RH Fixed Installation
     RH Portable Instruments
     Probes and OEM Modules
       DMT242 Dewpoint Transmitter
       DMT152 Dewpoint Transmitter
       DMT142 Dewpoint Transmitter
       HMP155 Humidity &Temp Probe
       HMP50 Humidity and Temp Probe
   Differential Pressure
   Carbon Dioxide
   Nitrogen Dioxide
   Carbon Monoxide
   Smoke Detectors
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   Proximity Sensors
   Photoelectric Sensors
   Safety Light Curtains
   Cables and Distribution Boxes
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Tel: 1-925-706-7433

Vaisala HMP155 Humidity and Temperature Probe
Vaisala Instruments

HMP155 HUMICAP® Humidity and Temperature Probe

Vaisala HMP155 HUMICAP® Humidity and Temperature Probe

Provides reliable and stable humidity and temperature measurement with the new generation Vaisala HUMICAP® 180R sensor. Especially designed for use in meteorological applications and for a wide range of instrumentation, for example, recorders, data loggers, and laboratory equipment and monitoring.

  • Vaisala HUMICAP®180R sensor - superior long-term stability
  • Optional warmed humidity probe
  • Plug-and-play
  • Chemical purge
  • USB connection for service use
  • Installation kits for DTR13 and DTR502 radiation shields and also for a Stevenson screen
  • Weather-proof housing IP66
  • New, fast temperature probe
  • Different output possibilities: voltage, RS-485, resistive Pt100
  • Applications: meteorology, aviation and road weather, instrumentation
PDF File Datasheet PDF File HPM155 Order Form PDF File User Guide  
Relative humidity measurement

Measurement range
Accuracy (incl. non-linearity, hysteresis and repeatability) at
     +15 … +25 °C
     (+59 … 77 °F)
For other temperatures, please see the the brochure
Recommended humidity sensor

0 ... 100 % RH

±1 % RH (0 ... 90 % RH), ± 1.7 % RH (90 ... 100 % RH)

Vaisala HUMICAP® 180R

Temperature measurement

Measurement range
Accuracy at +20 °C
     passive resistive output
Temperature sensor
Optional additional T probe
Other variables

-80 ... +60 °C (-112 ... +140 °F)

±0.17 °C
±0.12 °C
according to IEC751 1/3 Class B
Pt100 RTD

dewpoint/frost point temperature
, wet bulb temperature, mixing ratio

Operating environment


-80 ... +60 °C (-112 ... +140 °F)
-80 ... +60 °C (-112 ... +140 °F)

Inputs and outputs

Operating voltage
     voltage output
     resistive Pt100 (4-wire connection)

7 ... 28 VDC

0 ... 1V, 0 … 5 V, 0 … 10 V


Connection cables
Material (housing)
Housing classification

3.5, 10, and 30 m

HMP155 Humidity &Temp Probe

  HMP155 Humidity & Temperature Probe with Voltage or RS-485 output
Code: VIHMP155
Price: $735.00
Quantity in Basket: none

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