Testo 425 with telescopic probe

• The flow rate is displayed directly on the screen.
• Precise volume flow calculation by inputting the channel area
• Additionally, it is possible to switch to the current temperature reading.
• Temporal and point-by-point averaging provides information about average volume flow, flow velocity, and temperature measurement.
• Minimum and maximum values ​​can also be displayed.
• The Hold function allows the current measured value to be held on the display.
• Measurement of temperature, flow and volume flow
• Display lighting
• AutoOff function

• Thermal, with permanently attached flow probe (probe head diameter 7.5 mm)
• Includes temperature measurement and telescope (max. 820 mm), battery and calibration protocol.
• AutoOff function
• TopSafe, protection of the device against dirt and impact (accessory)
• 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% of reading)
• Resolution: 0.01 m/s
• Scope of delivery:
• Battery: 1 x 9 V (Order No.: 62 079 50)