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THERMOMETERS, HUMIDITY GAUGES, ACOUSTIC AND MECHANICS MEASURING DEVICES  |  Humidity and moistness gauges


Testo 635-1 Reliable long-term humidity measurement
The prerequisite for professional humidity measurement is a reliable and precise humidity probe. The internationally patented Testo humidity probe guarantees accurate and reliable long-term measurement results. The excellent long-term reliability of the probe has been proven in many endurance tests under extreme conditions and in an international interlaboratory test. This means considerably more assurance for the user. Adherence to defined humidity values is a deciding factor in many work, production and storage areas.
Testo 635-1 Reliable long-term humidity measurement
Testo 635-1 Reliable long-term humidity measurement
Testo 635-1 Reliable long-term humidity measurement

The new testo 635 provides the possibility of monitoring and analysing air humidity, material moisture (basis: equilibrium moisture) and the pressure dew-point.

Reliable long-term humidity measurement

The duct and indoor air temperature range of -20...+70 °C is monitored with a compact humidity probe. In addition to the relative humidity, air temperature and dew-point are also displayed.

Moisture on ceilings and walls can be the result of damage to the building or insufficient ventilation. With the help of testo 635, the difference between the wall surface temperature and the ascertained dew-point temperature of the room can be calculated. The wall surface temperature is measured using the patented cross-band probe. This shows the actual temperature of the object to be measured in a few seconds and also adapts excellently to rough surfaces. Building moisture as well as material moisture can be displayed by testo 635 on the basis of equilibrium moisture.

In the instrument 10 material characteristics curves are available for this.

The robust humidity probe is available for measuring equilibrium moisture at higher temperatures up to +140 °C. The pressure dew-point probe was developed specially for controlling and monitoring humidity in pressurized air up to - 60 °C tpd.

The pressure dew-point is displayed directly in the pressurized air system with the pressure dew-point probe.

The right probe for every application

The duct and indoor air temperature range of -20...+70 °C is monitored with a compact humidity probe. In addition to the
relative humidity, air temperature and dew-point are also displayed.

Moisture on ceilings and walls can be the result of damage to the building or insufficient ventilation. With the help of testo
635, the difference between the wall surface temperature and the ascertained dew-point temperature of the room can be
calculated. The wall surface temperature is measured using the patented cross-band probe. This shows the actual temperature of the object to be measured in a few seconds and also adapts excellently to rough surfaces.

Building moisture as well as material moisture can be displayed by testo 635 on the basis of equilibrium moisture. In the instrument 10 material characteristics curves are available for this. The robust humidity probe is available for measuring equilibrium moisture at higher temperatures up to +140 °C. The pressure dew-point probe was developed specially for controlling and monitoring humidity in pressurized air up to - 60 °C tpd. The pressure dew-point is displayed directly in the pressurized air system with the pressure dew-point probe.

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