Hot wire probe anemometer.
425 Hot Wire Anemometer.
Air Flow Velocity Temperature Measurement.
testo 425, thermal anemometer with permanently attached flow probe, incl. temperature measurement and
telescopic handle (max. 820 mm), battery and calibration protocol.
The compact testo 425 anemometer with permanently attached thermal flow probe
(probe head Φ 7.5 mm)
incl. telescopic handle. Volume flow is shown directly in the display.
425 Hot Wire Anemometer.
| Model | Description |
|---|---|
| 0560 4251 | 425 CFM Hot-Wire Anemometer |
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.
| Storage temperature | -40 to +85 °C |
| Operating temperature | -20 to +50 °C |
| Probe type Hot Wire | |
| Meas. Range | 0 to +20 m/s |
| Accuracy | ±(0.03 m/s +5% of mv) |
| Resolution | 0.01 m/s |
| Probe type NTC | |
| Meas. range | -20 to +70 °C |
| Resolution | 0.1 °C |
| Accuracy | ±0.5 °C (0 to +60 °C)
±0.7 °C (remaining range) |