Testo 635 Thermohygrometers
The testo 635 offers the possibility of testing and analysing air humidity, material moisture, plus U-value and the dewpoint in compressed air systems.
In addition to measurement with classical probes, a wireless measurement over up to 20 m distance is also possible with the testo 635. This eliminates damage to the cable or difficulties in handling. The wireless probes are available for the measurement parameters temperature and humidity, up to three wireless probes can be recorded and displayed by the testo 635. The optional plug-in radio module can be retrofitted at any time.
The testo 635 stands out thanks to its intuitive operation and clear menu structure. For example, for measurements at different measurement sites, the testo 635-2 provides the advantage that the measurement values can be allocated to the respective measurement site. For long-term measurements and material moisture measurements, the instrument can be switched between different user profiles. The testo 635 is available in two versions. The version testo 635-2 has extended instrument functions such as an instrument store, PC software, direct display of material humidity and the possibility of connecting a U-value probe.
▶ Video: Testo 635 Thermohygrometer (U Value Measurement)
Testo 635 Key Features:
- Connection of 3 radio probes
- Measurement of air humidity, material equilibrium moisture and pressure dew point in compressed air systems
- Display of dew point difference, min, max and mean values
- Print data on Testo printer (optional)
- Backlit display
- Protection type IP 54
What‘s the difference between the 635-1 and the 635-2?
(0560 6351) testo 635-1 thermohygrometer incl. battery and calibration protocol
- Cyclic printing of readings on testo printer, e.g. one per minute
Testo 635-1 can record the following values:
(via attachable probes, which are available as an option)
- Relative humidity
- Material moisture
- Material compensation moisture
- Pressure dew point in compressed air systems
- HTC value
- Air temperature
- Surface temperature
- Core temperature
- Absolute pressure
Testo 635-1 Applications:
- Localising mould
- Monitoring production and storage conditions
(0563 6352) testo 635-2 humidity/temperature measuring instrument with measurement value store, PC software and USB-cable incl. battery and calibration protocol
- Instrument store for 10000 readings
- PC software for filing and documenting measurement data
- Direct display of material moisture due to store-able characteristics curves (Basis: material equilibrium moisture)
- U-value probe connection possible
- Storage of single measurements or measurement series by measurement site
- Quick access to the most important functions via user profiles
Testo 653-2 Can record the following values:
(via attachable probes, which are available as an option)
- Relative humidity
- Material moisture
- Material compensation moisture
- Pressure dew point in compressed air systems
- HTC value
- Air temperature
- Surface temperature
- Core temperature
- Absolute pressure
Testo 653-2 Applications:
- Localising mould
- Measuring material moisture
- Monitoring drying processes
- Monitoring production and storage conditions
- U-value measurement in old buildings
- Measuring wood moisture quickly and non-destructively