Testo 0636 9770 | High-precision humidity/temperature probe head

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Testo 0636 9770 | High-precision humidity/temperature probe head NTC External Probes

Testo | High-precision humidity/temperature probe head
Order-Nr.  0636 9770
  • Intuitive: parallel determination of relative humidity and air temperature in indoor areas, including long-term measurement
  • Precise: carry out humidity measurements with an accuracy of ± (0.6% RH + 0.7 % of m.v.) in the range between 0 and 90% RH, calculation of wet bulb temperature, dew point and absolute humidity
  • Convenient: probe head is easy to attach to the universal handle with Bluetooth® or cable (available to order separately)
  • Intelligent calibration concept: only send in the probe head for calibration
More applications, less equipment: if you already own one of our probes with a universal handle, you can easily expand your portfolio of probes with the high-precision humidity/temperature probe head.
Product Description
Proven quality from Testo: you can depend on reliable measurement results, because the probe head is equipped with our high-precision, long-term stable humidity sensor. This measures the humidity with an accuracy of ± (0.6% RH + 0.7% of m.v.) in the range between 0 and 90% RH and is traceable to international humidity standards, such as ILAC, PTB and NIST.

Delivery Scope

High-precision humidity/temperature probe head including calibration protocol.

Please do not use the probe head in condensing atmospheres. For continuous application in high-humidity ranges
    > 80% RH at ≤ 30 °C for > 12 h
    > 60% RH at > 30 °C for > 12 h
please contact us via the Muser-Testo website.
Technical Data
Temperature - NTC
Measuring range -20 to +70 °C
Accuracy ±0.3 °C (+15 to +30 °C)
±0.5 °C (Remaining Range)
Resolution 0.1 °C
Humidity - Capacitive
Measuring range 0 to 100 %RH
Accuracy ±(0.6 %RH + 0.7 % of mv) (0 to 90 %RH)
±(1.0 %RH + 0.7 % of mv) (90 to 100 %RH)
±0.03 %RH/K (k=1)
Resolution 0.01 %RH
General technical data
Storage temperature -20 to +70 °C
Weight 20 g
Dimensions 160 x 28 x 28 mm
Operating temperature -20 to +70 °C
Length probe shaft 140 mm
Diameter probe shaft 12 mm
Product colour black


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