Humidity Dew point meter.
635-1 Hygrometer Air Humidity Temperature Dew Point.
testo 635-1, humidity/temperature measuring instrument, with battery.
The instrument for measuring air moisture, material equilibrium moisture and pressure dewpoint in
compressed air systems. Up to 3 temperature or humidity probes can be displayed; data transmission is
radio-controlled, i.e. wireless. Measurement data can be transmitted by infrared to the printer.
635-1 Hygrometer
| Model | Description |
|---|---|
| 0560 6351 | 635-1 Compact Pro Thermohygrometer |
| 0563 6352 | 635-2 Compact Pro Hygrometer w/memory and software |
It is also possible, during cyclical printing, to print measurement data once every minute, for example.
Model 635 immediately displays the dewpoint difference between ambient air and the wall surface when
analyzing moisture on walls and ceilings.
There are precision probes up to -60°C tpd available to inspect
pressure dewpoint in compressed air systems. The humidity sensor developed by Testo has proven itself
world-wide and has outstanding features in terms of precision, long-term stability, temperature resistance
and robustness.
| Storage temperature | -30 to +70 °C |
| Operating temperature | -20 to +50 °C |
| Probe type Typ T (Cu-CuNi) | |
| Meas. range | -200 to +400 °C |
| Accuracy | ±0.3 °C (-60 to +60 °C)
±0.5% of mv (remaining range) |
| Resolution | 0.1 °C |
| Probe type Type K | |
| Meas. Range | -200 to +1370 °C |
| Accuracy | ±0.3 °C (-60 to +60 °C)
±0.5% of mv (remaining range) |
| Resolution | 0.1 °C |
| Probe Type NTC | |
| Meas. Range | -40 to +150 °C |
| Accuracy | ±0.2 °C (-25 to +74.9 °C)
±0.4 °C (-40 to -25.1 °C) ±0.4 °C (+75 to +99.9 °C) ±0.5% of mv (remaining range) C |
| Resolution | 0.1 °C |
| Probe type Absolute pressure probe | |
| Meas. Range | 0 to +2000 hPa |
| Resolution | 0.1 hPa |
| Probe type humid. sensor, cap. | |
| Meas. Range | 0 to +100 %RH |
| Resolution | 0.1 %RH |