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Cat. Number: 0560 4251
testo 425, thermal anemometer with permanently attached flow probe (∅ probe head 7.5 mm), incl. temperature measurement and telescopic handle (max. 820 mm), battery and manual
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The compact testo 425 anemometer with permanently attached thermal flow probe (probe head ∅ 7.5 mm) incl. telescopic handle. Volume flow is shown directly in the display. Accurate volume flow calculation thanks to easy input of duct area. In addition, it is also possible to switch to the current temperature reading. Timed and multi-point mean calculation provide information on mean volume flow, flow speed and temperature reading. Min/max values can also be shown in the display. The Hold function makes it possible to freeze current readings in the display.
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Storage temperature |
-40 to +85 °C |
|---|---|
| Operating temperature | -20 to +50 °C |
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Battery type |
9V block battery, 6F22 |
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Battery life |
20 h |
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Weight |
285 g |
|
Dimensions |
182 x 64 x 40 mm |
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Material/Housing |
ABS |
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Probe type NTC
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|
|---|---|
| Meas. range | -20 to +70 °C |
| Accuracy | ±0.5 °C (0 to +60 °C) ±0.7 °C (remaining range) |
| Resolution | 0.1 °C |
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Probe type Thermo
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| Meas. Range | 0 to +20 m/s |
| Accuracy | ±(0.03 m/s +5% of mv) |
| Resolution | 0.01 m/s |
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