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The Testo 625 is the ideal instrument to measure between relative humidity, wet bulb, temperature and dew point all at the touch of a button It provides three humidity probe options: fixed probe, remote cable probe and the optional wireless probe. The Testo 625 is faster, more accurate, easier to use than the old sling psychrometer. This is the ideal instrument for HVAC or building IAQ applications. Purchase the Testo 625 with an optional calibration certificates and get a certified meter right out of the box.
Temperature | NTC Technical data |
Measuring range | 14.0° to 140.0 °F / -10 to +60 °C |
Accuracy | ±0.9 °F / ±0.5 °C |
Resolution | 0.1 °F / 0.1 °C |
Technical data | Temperature - Type K Thermocouple (Wireless Probe Required) |
Measuring range | -328.0° to 2498.0 °F / -200 to +1370 °C |
Accuracy | See probe data |
Resolution | 0.1 °F / 0.1 °C |
| Humidity | Capacitive Sensor |
Measuring range | 0.0 to 100.0 %RH |
Accuracy | ±2.5 %RH (5 to 95 %RH) |
Resolution | 0.1 %RH |
| General Specifications | |
Housing | ABS |
Warranty | 2 years |
Battery type | 9V block battery, 6F22 |
Battery life | 70 h (without radio operation) |
Dimensions | 7 x 2 x 2 in. |
Operating temperature | -4.0° to 122.0 °F |
Storage temperature | -40.0° to 185.0 °F |
Weight | 7 oz. |
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