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Testo SE & CO KGaA 
 

High accuracy thermohygrometer testo 635

For standard atmospheric environment probe or separate humidity and temperature probes. With calibration protocol and battery. Without probe. The dew point value between the environmental air and surfaces can be determined with separate probes. Relative humidity and temperature are displayed simultaneously, the dew point is determined at the touch of a button. Data is documented using the accessory Testo logging printer.
Measuring ranges:
Combination probe:0 to 100 %R.H.
-20 to +140 °C
-50 to +100 °C td (Dew point)
Temperature probe:-50 to 1000 °C (NiCr-Ni)
Accuracy:(Moisture see probe)
-40 to +900 °C: ±1 °C, ±0.5 % Meas. value.
±2 °C, ±1 % Meas. value: rest of range
 
 TypePKCat. No.at LLG stock (GR)
testo 635-119718660
 testo 635-219718666
Accessories:
TC-Temperature probes for testo measuring instruments, TC plug type K
Service case for thermohygrometer testo 635 and temperature meter testo 735
Plug-in mains adapter for thermohygrometer testo 635 and temperature meter testo 735
Radio module for testo measuring devices
Radio handle for testo measuring devices
Temperature probe heads for radio handle
Humidity probe head for radio handle
Magnetic probes for testo measuring instruments
Pipe contact probe for testo measuring instruments
Thermocouples with TC adapter for testo measuring instruments
Immersion tip for testo measuring devices
Fast printer IRDA for testo measuring devices
Temperature probe for U-value determination
Humidity/temperature probes for thermohygrometer testo 635
Pressure dew point probes for thermohygrometer testo 635