Air Temperature & Relative Humidity

Capacitive RH chip and PRTs

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HMP45C-L Temperature and RH Probe

Temperature and RH Probe
  • Temperature measurement uses PRT
  • RH measurement uses capacitive RH chip
  • 41003-5 radiation shield recommended when exposed to sunlight
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CS215-L CSL Temperature and Relative Humidity Sensor

CSL Temperature and Relative Humidity Sensor
  • Uses a combined digital humidity and temperature element
  • Field changeable element allows on-site recalibration
  • Digital SDI-12 output
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HMP50-L Vaisala Temperature and RH sensor

Vaisala Temperature and RH sensor
  • PRT used for temperature measurement
  • Capacitive RH chip used for RH measurement
  • 41303-5A radiation shield recommended when exposed to sunlight
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WXT510 Weather Transmitter

Weather Transmitter The WXT510's wind sensor consists of three equally spaced transducers that produce ultrasonic signals. Wind speed and direction are determined by...



About Air Temperature & Relative Humidity

Air Temperature and Relative Humidity sensors are two separate sensors packaged in the same sensor housing. Both probes are manufactured by Vaisala. The HMP45C is recommended in humid areas or applications when accurate measurements of RH (especially above the 90% RH level) are important.

Solar radiation shields are required if the probes will be exposed to sunlight.