testo 605-H1 - Compact thermal hygrometer

Order-Nr.  0560 6053

  • Slim form factor is convenient for duct or ambient measurements

  • Resilient Testo patented humidity sensor ensures long life

  • Rotating display allows for easy reading of measurements

  • Quick response sensor provides fast readout of measurements

The testo 605-H1 thermal hygrometer is capable of precise measurements of air humidity and air temperature, as well as calculations of dewpoint temperature. The testo 605-H1 is ideally suited for duct measurements, due to its slim form factor and ability to be read from multiple angles, with a rotatable probe.

Delivery time: 1 working days

Shipping costs

Product Description

With its long term, resilient, Testo patented sensor, the testo 605-H1 thermal hygrometer can provide correct air humidity, air temperature, and dewpoint calculations for in-duct and ambient conditions.  The rotating cap will further protect the sensor from dirt and impact, ensuring reliable measurements for years.


Delivery Scope

testo 605-H1, 3 AAA batteries, attachment clip, and instruction manual
Temperature - NTC

Measuring range

32.0° to 122.0 °F / 0 to +50 °C

-20 to +50 °Ctd


±0.9 °F / ±0.5 °C


0.1 °F / 0.1 °C

Humidity - Capacitive

Measuring range

5 to 95 %rH


±3 %rH


0.1 %rH

Please see the additional accuracy information for humidity in the instruction manual.

General technical data


3 oz. (with batteries, without packaging) / 75 g (with batteries, without packaging)

Operating temperature

32.0° to 122.0 °F / 0 to +50 °C

Battery type

3 x AAA

Battery life

Approx. 1000 h

Storage temperature

-4.0° to 158.0 °F / -20 to +70 °C