
Highlights & Details
testo 425 – app-enabled digital hot-wire anemometer
- Simple, fast and precise flow and temperature measurement and volume flow calculation in the ventilation channel
- Increased flexibility for channel measurements with the wired telescopic probe (maximum length 820 mm)
- Fast in-app (channel) configuration, graphics history, second screen and data storage in the testo Smart APP
- Timely and selective averaging
Technical specifications
- Cable length 1.5 m.
- Protection class IP20, IP40
- Probe/probe length 180 mm
- Diameter of probe/feeler tube 7.5 mm
- Wind speed resolution
0.01 m/s
- Product type
Anemometer
- Temperature reading range
-20 up to +70 °C
ISO standards
- Dim
(L x W x H) 28 x 60 x 135 mm
- Features
Hot wire sensor
- Accuracy
0.5 °C
- Weight
268 g
- Temperature reading range (max.)
+70 °C
- Temperature reading range (min.)
-20 °C
- Air speed reading range (max.)
30 m/s
- Air speed reading range (min.)
0.01 m/s
- Width
60 mm
- Height
135 mm
- Length
28 mm
Documents & Downloads
Datasheet
Datasheet 3049282 testo Anemometer Calibrated to (ISO standards) 0.01 up to 30 m/s Hot wire sensor
User & Safety Instructions
User & Safety Instructions 3049282 testo Anemometer Calibrated to (ISO standards) 0.01 up to 30 m/s Hot wire sensor
Description
Optimally adjusted air-conditioning and ventilation systems are a decisive factor for modern buildings. Accordingly, it is important to ensure that the flow, temperature and volume flow in the ventilation duct are correct with the appropriate measurement technology. The testo 425 thermal anemometer is quick, simple and precise to stands at your side. The cabled telescopic probe can be pulled out to 820 mm and thus simplifies the work via head or in channels with a large diameter. This especially robust and compact measuring device automatically does all the relevant calculations, such as volume flow or time and point mean values. By the way: Configuration of the measuring device, display and storage of the measured values as well as documentation can be done very comfortably with the testo Smart APP. It also turns your Smartphone into a second display.
This text is machine translated.
This text is machine translated.
Features
- The compact testo 425 heat-wire anemometer with a telescopic probe and app link enables simple, quick and accurate flow measurement and volume flow calculations in the ventilation channel of air conditioning and ventilation systems.
Scope of delivery
- testo 425 – thermal hot-wire anemometer with app attachment and a permanently attached telescope (max. 820 mm)
- Bag
- Calibrated protocol
- 3x AA battery












