testo 425 – hot wire sensor 7.5 mm
Air flow meter with telescopic sensor for accurate measurements in air conditioning and ventilation systems.
- Fast air flow and air velocity measurements in ventilation ducts.
- Flexible duct measurements with cable-connected telescopic sensors (maximum length: 820 mm).
- Settings, measurement data, graphs and the mobile as a second screen with the testo Smart app.
- Automatic calculation of time and point averages.
6 090
In stock
In stock
testo 425 - air flow meter with hot wire sensor and app
Optimally adjusted air conditioning and ventilation systems are a crucial factor in modern buildings. With the compact, simple and fast hot wire anemometer testo 425, you ensure correct air flows and temperatures in ventilation ducts. The integrated telescope can be extended up to 820 mm, facilitating measurements above or in large diameter channels. All relevant calculations, such as airflow or time and point averages, are automatically performed by the measuring instrument.
Så här underlättar testo Smart-appen för dig:
- Enkel inställning av mätinstrumentet
- Effektiv kund- och mätplatshantering
- Pålitlig lagring av alla mätdata
- Förvandlar mobilen till en andra skärm
- Visning av grafiska mätvärdeskurvor
- Enkel dokumentering av allt arbete
- Skicka rapporter direkt från mätplatsen via e-post
testo Smart-appen finns på Google Play och App Store. Den är gratis att både ladda ned och använda.
Included in delivery
- testo 425 - hot wire anemometer with app connection and fixed telescope (max. 820 mm)
- Transport bag
- Calibration protocol
- 3 AA batteries
| Hot wire | |
| Measurement range | 0 ... 30 m/s |
| Accuracy ±1 digit | ±(0.03 m/s + 4% of m.v.) (0 … 20 m/s) ±(0.5 m/s + 5% of m.v.) (20.01 ... 30 m/ s) |
| Resolution | 0.01 m/s |
| NTC | |
| Measurement range | -20 ... +70 °C |
| Accuracy ±1 digit | ±0.5 °C |
| Resolution | 0.1 °C |
| General technical data | |
| Operating temperature | Measuring instrument: -20 ... +50 °C Sensor: -20 ... +70 °C |
| Storage temperature | -20 ... +50 °C |
| Battery type | 3 x AA |
| Battery life | 35 h |
| Size | Measuring instrument: 135 x 60 x 28 mm Probe: length 180 mm, Ø 7.5 mm |
| Cable length: 1.5 m | |
| Weight | 268 g |
| Protection class | Measuring instrument: IP 40 Sensor: IP20 |
| Material in instrument housing | ABS PC/TPE |
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Mobile Bluetooth/IRDA printer
3 795 SKU 0554 0622Print graphics and measurement data from compatible Testo instruments or Testo apps with this mobile Bluetooth IRDA printer. 1 roll of printer paper, rechargeable battery and power supply included.
- Bluetooth® & IRDA interface in one printer
- Printing of graphics and measurement data
- Colored LEDs to indicate the status of the printer
- Data transfer in 2 seconds
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Printer paper
355 SKU 0554 0568Extra printer paper for Testo's printers (6 rolls). Documentation of measurement data that is readable for up to 10 years.
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Plastic plug 8 mm
210 SKU 2340 0008Plastic plug Ø 8 mm for sealing measuring holes. One jar contains 100 plugs.
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Plastic plug 10 mm
210 SKU 2340 0010Plastic plug Ø 10 mm for sealing measuring holes. One jar contains 100 plugs.
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