HM45 Vaisala Humidity and Temperature Meter with Remote Probe


: $695.00
: $595.00
You save $100.00!

Availability:: Usually Ships in 1 to 2 Weeks
Product Code: HM45


The HM45 is an ideal everyday spot-checking tool for HVAC professionals. The proven Vaisala HUMICAP® 180R sensor provides reliable measurement while the user interface with graphical trend display makes daily operation quick and easy. User interface is available in 10 languages. Remote probe design along with spiral cable makes it easier to measure and check readings in hard to reach places.

In addition to relative humidity and temperature, the HM45 provides five calculated humidity parameters (absolute humidity, dew point, enthalpy, mixing ratio, wet bulb), all available in both metric and non-metric units. The HM45 features an interchangeable HMP113 measurement probe allowing for easy calibration (only the probe needs to be calibrated) or replacement of the probe.

The package includes:

  • HM45 humidity and temperature meter with remote probe
  • Calibration certificate (ISO9001 compliant, NIST traceable)
  • Light carrying case
  • Alkaline batteries 2 x AA sized, 1.5V (LR6)
  • User's Guide in English

Detailed information

Measurement parameter(s)Relative humidity
Absolute humidity*
Dew point temperature*
Mixing ratio*
Wet bulb*
Measurement range0 ... 100 % RH
-40 ... +60 °C (-40 ... +140 °F) T
Measurement accuracyAt temperature +0 ... 40 °C (+32 ... +104 °F):
±1.5 % RH (0 ... 90 % RH)
±2.5 % RH (90 ... 100 % RH)
±0.2 °C T
Operating temperatureFor probe -40 ... +60 °C (-40 ... +140 °F) T
Operating voltage2xAA-size alkaline batteries, type IEC LR6
Housing classificationIP54

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