The testo 645 humidity/temperature measuring instrument automatically indicates the measurement parameters of relative humidity, absolute humidity, dew point, degree of humidity, enthalpy and temperature at the touch of a button.

Highly accurate immersion/penetration probe

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Measuring range	-100 to +350 °C
Accuracy	±(0.06 °C + 0.1 % of mv)
Reaction time	30 s

Highly accurate immersion/penetration probe

Highly accurate immersion/penetration probe

Temperature - Pt100