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Testo 425 Air Velocity Meter is a multi-functional device that records the flow speed, calculates the volumetric flow and also measures the temperature. It has a measuring range of 0 to +20 m/s, making it best suited to low airflow velocity. It features a telescopic flow probe that can be extended to a length of up to 820 mm and has a probe head diameter of 7.5 mm. When you input the duct surface area value, it automatically calculates the volumetric flow during the flow measurement. Single and multi-point averaging features provides the value of average volumetric flow, flow speed, and temperature reading. This Air velocity meter has a Hold button, that helps you to freeze the current reading to compare it with another value, for example. If you forget to switch off the air velocity meter, the Auto-off function will automatically switch off the device which conserves your battery life.
Features of Testo Air Velocity Meter:
- This Testo Air Velocity Meter not only calculates Temperature and flow measurement but also volumetric flow can be calculated
- Permanently attached an extendible telescopic probe
- This Testo Air Velocity Meter comes With single and multi-point averaging
- Display of min/max value, hold function, Auto-off function
|Measuring Parameters||Air Flow Velocity, Temperature|
|Temperature||-20 to +70 °C|
|Accuracy||For remaining range : ±0.7 °C, For: (0 to +60 °C) : ±0.5 °C|
|Air Flow Velocity||0 to +20 m/s|
|Accuracy_1||±(0.03 m/s + 5 % of mv)|
|Operating Temperature||-20 to +50 °C|
|Storage Temperature||-40 to +70 °C|
|Battery||9V block battery, 6F22|
|Battery Life||20 h|
|Dimension||182 X 64 X 40mm|
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