Digital hot wire anemometer Testo 425

Make: TESTO (Made in Germany)
Model Code: TESTO 425
Part Code: 563 0425
Order Code: KLSTE011005630425

The compact hot wire anemometer testo 425 with telescopic probe is ideal for simple, fast and precise determination of flow velocity and volume flow in ventilation ducts of air conditioning and ventilation systems. The connection to the testo Smart App enables configuration, display (also as second screen) and storage as well as documentation of the measurement directly in the App.

Features:

✔ Simple, fast and precise flow and temperature measurement plus volume flow calculation in the ventilation duct

✔ More flexibility for duct measurements with the cable-connected telescopic probe (maximum length 820 mm)

✔ Fast in-app (duct) configuration, graph history, second screen and measurement data memory in the testo Smart App

✔ Timed and point mean value calculation

SKU:KLSTE01100563 0425
Brand Category: Testo (Germany)
Product Category: Velocity Measurement
Warranty: 2 Years (against manufacturing defects only )

Category: TESTO Tag: brand

Description

Thermal Anemometer testo 425

Digital hot wire anemometer Testo 425 Optimally adjusted air conditioning and ventilation systems are a decisive factor for modern buildings. Accordingly, it is important to use the appropriate measurement technology to ensure that the flow, temperature and volume flow in the ventilation duct are correct. The testo 425 thermal anemometer is your fast, easy and precise companion. The cable-connected telescopic probe can be extended up to 820 mm, making it easier to work overhead or in large diameter ducts. All relevant calculations, such as volume flow or time and point averages, are performed automatically by the particularly robust and compact measuring instrument. Incidentally: Configuration of the measuring instrument, display and storage of measured values as well as documentation are all particularly convenient with the testo Smart App. This also turns your smartphone into a second display.
The Testo 425 Digital Hot Wire Anemometer is a compact and precise instrument designed for measuring air velocity and temperature in HVAC systems, cleanrooms, and other controlled environments. It features a telescopic probe with an integrated temperature sensor for simultaneous measurement, ensuring efficiency and reliability. The device provides real-time flow calculations, such as volume flow, making it ideal for quick assessments and detailed diagnostics. Key highlights include:

Telescopic Probe: Extendable for reaching ducts and vents easily.
Accurate Measurements: Precision in both air velocity and temperature readings.
User-Friendly Design: Lightweight and ergonomic for comfortable handling.
Data Display: Clear, backlit display for easy reading, even in dimly lit areas.
Application Flexibility: Suitable for HVAC balancing, exhaust monitoring, and cleanroom compliance.

Technical Data

Temperature - NTC

Measuring range

-20 to +70 °C

Accuracy

±0.5 °C

Resolution

0.1 °C

Velocity -Thermal anemometer

Measuring range

0.01 to 30 m/s

Accuracy

±(0.5 m/s + 5.0 % of mv) (20.01 to +30 m/s)
±(0.03 m/s + 4.0 % of mv) (0.01 to +20 m/s)

Resolution

0.01 m/s

General technical data

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

Diameter probe shaft

7.5 mm

Protection class

IP20

Length probe

180 mm

Battery life

35 h

Battery type

3x AA

Storage temperature

-20 to +50 °C

Accessories/ Probes

Digital temperature, humidity and air flow meter-testo 480

Order Number: 0554 0660

Request For price

9V rech. battery for instrument

Order Number: 0515 0025

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Lithium battery, button cell, type CR 2032

Order Number: 0515 0028

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Recharger for 9V rechargeable battery

Order Number: 0554 0025

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Control and calibration kit for Testo humidity probes

Order Number: 0554 0660

Request For price

ISO calibration certificate

Order Number: 0520 0006

Request For price