HMP77B Chemical Probe for HM70

Order #: HMP77B-RENT1

Mfg #: HMP77B-RENT1

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(800) 633-0561
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Call for price


HMP77B Chemical Probe for HM70

Order #: HMP77B-RENT1

Mfg #: HMP77B-RENT1

Call for price

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Have a Question? Speak to a Transcat Rental Expert: 800.264.4059

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This product is available for shipping to the United States, Canada, and Puerto Rico only.

Product Highlights

  • Employ with all models of the MI70 series meters
  • Temperature range: -70° to 180° C (-94° to 356° F)
  • Designed for demanding humidity measurements in chamber and incubator applications
  • Ensure accurate measurements even in areas with high concentrations of chemicals with chemical purge
  • Limit measurement delays by keeping the sensor dry when inserted into hot or humid processes with the sensor preheat
  • 5m (16.5 ft) cable included
  • 50 second response time
  • Standard plastic grid and stainless steel netting

The Vaisala HMP77B Temperature and Humidity Probe delivers all the features and functions of the HMP77, but is designed with the addition of chemical purge and sensor preheat.

With the chemical purge, measurements are precise, despite when taken in environments with high concentrations of chemicals. More still, the sensor preheat ensures the sensor stays dry when inserted into hot and humid processes.

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Measurement Parameters

Relative humidity

Measurement Range

0 ... 100 % RH 
-70 ... +180 °C (-94 … +356 °F) T

Measurement Accuracy

At temperature +20 °C (68 °F) 
± 1.0 % RH (0 ... 90 % RH) 
± 1.7 % RH (90 ... 100 % RH) 
± 0.2 °C (0.36 °F) ±0.6 %RH (0 ... 40 %RH) T

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  • Our weekly period lasts 7 calendar days, while our monthly rental period lasts 28 calendar days
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