Description
- Dual Probe Measurement
- Measurement of air moisture, material equilibrium moisture, pressure dew point
- U – Value probe connection
- Protection class IP54
The Testo 635-1 temperature and humidity measuring instrument displays min., max. and mean values.
When the pressure dew point probe is attached, it can measure the pressure dew point in compressed air. If a humidity probe is attached to the measuring instrument, it can also measure the dew point and water content of indoor air along with the psychrometric temperature, in addition to air humidity and air temperature.
The measuring instrument also calculates the dew point distance between indoor air and wall surface. In the event of mould in the home, this means you get an initial indication of whether mould has been caused by incorrect use of ventilation or by moisture ingress. You can find out more about the measurement of mould in the home with the testo 635-1 in the “Applications” tab.
The temperature and humidity measuring instrument is really easy to use and the menu guidance is user-friendly. The display with its illumination function means the readings are easily legible even when visibility is poor. A solid housing reliably protects the measuring instrument from impacts.
Technical Specifitons:
| Temperature- NTC: | |
| Measuring 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) |
| Reaction time | 0.1 °C |
| Temperature- TC Type K (NiCr-Ni): | |
| Measuring Range | -200 to +1370 °C |
| Accuracy | ±0.3 °C (-60 to +60 °C)
±(0.2 °C + 0.5 % of mv) (Remaining Range) |
| Reaction time | 0.1 °C |
| Humidity- Capacitive: | |
| Measuring Range | 0 to 100 %RH |
| Accuracy | See probe data |
| Reaction time | 0.1 %RH |
| Absolute Pressure: | |
| Measuring Range | 0 to 2000 hPa |
| Accuracy | See probe data |
| Reaction time | 0.1 hPa |
| General Technical Data: | |
| Weight | 428 g |
| Dimensions | 220 x 74 x 46 mm |
| Operating temperature | -20 to +50 °C |
| Product-/housing material | ABS / TPE / Metal |
| Battery type | Alkali manganese, mignon, type AA |
| Battery life | 200 h |
| Storage temperature | -30 to +70 °C |
