- Testo 425
- Fixed telescope (max 820mm)
- 3 X AA batteries
- Transport bag
- Calibration protocol
Testo 425 Compact Thermal Anemometer
SKU: TESTO425
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Key Features
- Measure air flow velocity and air temperature
- Calculate volume flow by entering duct channel area
- Extendable telescopic probe with 820mm maximum extension
Related Categories
£395.25
£474.30
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Key Features
- Measure air flow velocity and air temperature
- Calculate volume flow by entering duct channel area
- Extendable telescopic probe with 820mm maximum extension
Related Categories
Testo 425 Compact Thermal Anemometer
The Testo 425 Compact Thermal Anemometer is an extremely useful instrument for use in the HVAC sector, particularly ascertaining air flow and temperature readings in ventilation ducts. This is because of the compact ø7.5mm diameter sensor that sits on top of a telescopic probe with a maximum length of 820mm. The use of a hot-wire probe rather than a vane also means that it is easier to position the meter at an appropriate angle. The anemometer had an air flow velocity range of 0 to 30m/s and a temperature range of -20˚C to 70˚C whilst volume flow can also be calculated if the user enters the cross-sectional area of the duct.
The large, backlit, digital screen on the Testo 425 shows results for air flow, volume flow and temperature in m/s, m3/h and ˚C. It is capable of showing two readings simultaneously and also offers min/max values alongside data hold. Further measurement options include point and timed mean value calculation. The anemometer has a 35-hour battery life and is also provided with batteries and a calibration protocol certificate. The Testo 425 has a robust and durable design, with a protection class rating of IP40 for thew instrument and IP20 for the probe.
Testo part number:0563 0425
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Key Features
- Air flow velocity range: 0 to 30m/s
- Air flow velocity accuracy: ±(0.03 m/s + 4% of m.v.) (0 to 20 m/s) ±(0.5 m/s + 5% of m.v.) (20.01 to 30 m/s)
- Air flow velocity resolution: 0.01m/s
- Temperature range: -20˚C to 70˚C
- Temperature accuracy: ±0.5˚C
- Temperature resolution: 0.1˚C
- Volume flow calculation
- 820mm telescopic probe
- Point and timed mean values
What's In The Box?
- Testo 425
- Fixed telescope (max 820mm)
- 3 X AA batteries
- Transport bag
- Calibration protocol
| Yes |
|
Temperature - NTC
Velocity - Thermal anemometer
General technical data
|
| Label | Type | Size | Download | |
|---|---|---|---|---|
|
Testo 425 Datasheet | 603.3 KB | Download | |
|
|
Testo Compact Class Brochure - Jan 2023 | 3 MB | Download |
