testo 425
€525.69
Product information "testo 425"
Digital Hot-Wire Anemometer testo 425 with App Connectivity
testo anemometers measure air velocity, volume flow and temperature at air inlets and outlets. This enables quick, repeatable balancing and inspection of ventilation and air conditioning systems.
Key Benefits at a Glance
- Easy, fast and accurate air velocity and temperature measurement and volumetric flow rate calculation in ventilation ducts
- Greater flexibility for duct measurements with the wired telescopic probe (maximum length 820 mm)
- Fast in-app (duct) configuration, graphical trend display, second screen and measurement data storage in the testo Smart App
- Time-based and point-based averaging
Scope of delivery
- testo 425 - thermal hot-wire anemometer with app connectivity and permanently attached telescope (max. 820 mm)
- Carrying case
- Calibration report
- 3 x AA batteries
Technical specifications
| Temperature - NTC | |
|---|---|
| Measuring range | -20 to +70 °C |
| Accuracy | ±0,5 °C |
| Resolution | 0,1 °C |
| Thermal air velocity anemometer | |
| Measuring range | 0,01 to 30 m/s |
| Accuracy | ±(0,5 m/s + 5,0 % of measured value) (20,01 to +30 m/s), ±(0,03 m/s + 4,0 % of measured value) (0,01 to +20 m/s) |
| Resolution | 0,01 m/s |
| General technical specifications | |
| Weight | 268 g |
| Dimensions | 135 x 60 x 28 mm |
| Operating temperature | Probe: -20 to +70 °C, -20 to +50 °C |
| Product/housing material | ABS + PC / TPE |
| Cable length | 1,5 m |
| Probe shaft diameter | 7,5 mm |
| Protection rating | IP20 |
| Probe length | 180 mm |
| Battery life | 35 h |
| Battery type | 3x AA |
| Storage temperature | -20 to +50 °C |
Operating conditions
Battery-operated handheld instrument for inspection and maintenance.
- Operating temperature: probe: -20 to +70 °C, -20 to +50 °C
- Protection rating: IP20
- Battery life: 35 h
- Battery type: 3x AA
- Storage temperature: -20 to +50 °C
- For construction sites
- For production environments
- For temporary use
- Not suitable for potentially explosive atmospheres (no ATEX certification)
Typical applications
Building management & facilities management · Skilled trades · Engineering & technical services
Product information
- Manufacturer: Testo SE & Co. KGaA, Celsiusstraße 2, 79822 Titisee-Neustadt, Germany
- Manufacturer's part number: 0563 0425
Downloads
- Instruction manual testo 425 (PDF, German)
- EU Declaration of Conformity testo 425 (PDF, German)
- Instruction manual testo 425 (PDF, English)
- UK Declaration of Conformity testo 425 (PDF, English)
- Technical data sheet (PDF, German)
- Technical data sheet (PDF, English)
We offer additional discounts for larger order quantities. Let us know the quantity required and we will prepare a tailored quotation.
Request a bulk quotation
Technical Details
| Operating Conditions: | For construction sites, For production environments, For temporary use |
|---|---|
| Primary Function: | Measuring & Testing |
| Sectors/Industry: | Building & Facility Management, Maintenance & Technical Services, Trades & Workshops |
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