Anemometer testo 425 with telescopic probe

• Volume flow is shown directly on the display
• Exact volume flow calculation by entering the channel surface area
• Also possible to switch to the current temperature measurement
• Averages over time and of points provide information about average volume flow, flow speed and temperature measurement
• Min./max. values can also be shown on the display.
• Hold function makes it possible to keep the current measurement on the display
• Measurement of temperature, flow rate and volume flow
• Display lighting
• Auto off function

• Thermal, with permanently connected flow probe (ø probe head 7.5 mm)
• Incl. temperature measurement and telescope (max. 820 mm), Batteries and calibration protocol
• Auto-off function
• TopSafe, protection of the device against dirt and Schütz (Accesories)
• Operating temperature: -20 ... +50°C
• Housing material: ABS
• Weight: 285 g
• Dimensions: 182 x 64 x 40 mm
Sensor type NTC:
• Measuring range: -20 ... +70°C
• Accuracy: ± 0.5°C (0 ... +60°C) ± 0.7°C (remaining measuring range)
• Resolution: 0.1°C
Sensor type Thermo:
• Measuring range: 0 ... +20 m/s
• Accuracy: ± (0.03 m/s +5% v.Mw.)
• Resolution: 0.01 m/s
• Scope of delivery:
- Batteries: 1 x 9 V (order no.: 62 079 50)