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  1. Air Velocity Meters

Testo 425 Thermal Anemometer

Hot wire thermo-anemometer and compact air velocity and volume meter with thermal probe.

Testo 425 Thermal Anemometer
Testo 425 Thermal Anemometer
Retired products cannot be ordered

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Manufactured
  • By Testo
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Questions?
Call 1-800-884-4967 or email sales@instrumart.com. Open Mo-Th 8am to 5:30pm. Fr 8am to 5pm ET.
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Overview

Features

  • Air velocity range: 0 to 4000 fpm
  • Temperature range: -4 to 160°F
  • Flow, volume flow (cfm) and temperature measurements
  • Multi-point and timed mean calculations
  • Max-Min values make comparisons fast and easy
  • "Hold" button freezes readings
  • Clear backlit display
  • TopSafe provides water, dirt and impact protection

Description

The Testo 425 thermal anemometer is a compact, easy to use anemometer with attached thermal probe on a telescopic handle. The Testo 425 thermal anemometer measures air velocity from 0 to 4000 fpm and temperatures from -4 to 160°F. Volume flow can also be measured by simply entering the duct measurements into the Testo 425 thermal anemometer.

The Testo 425 thermal anemometer displays reading on a large, clear display. Switching between flow and temperature readings is easy. The Testo 425 thermal anemometer includes timed and multi-point mean flow calculations which allow for easy flow analysis, volume accumulation estimates, and temperature variation monitoring. Min-Max values are one button simple, while the "Hold" function freezes the current readings in the display for easy data recording.

The Testo 425 thermal anemometer ships complete with meter, probe, telescopic handle (max. 33 inches), battery, and calibration document.

Documents

Documents

  • Testo 425 Thermal Anemometer Data Sheet PDF (666 KB)
  • Testo 425 Thermal Anemometer Manual PDF (German, English and French versions) (335 KB)
  • All possible part numbers

Accessories

Testo TopSafe Protective Case
Testo TopSafe Protective Case

Indestructible protection case protects from impact.

$58.00 $52.20
Testo 0516 1201 Hard Case
Testo 0516 1201 Hard Case

Protect your Testo instrument and probes.

$86.00 $77.40

Need Help? Call a Temperature engineer at 1-800-884-4967

We're open Mo-Th 8am to 5:30pm. Fr 8am to 5pm ET

Ron J. headshot Ron J.
Temperature Engineering Lead
29 years at Instrumart
Rhys D. headshot Rhys D.
Applications Engineer
Shawn D. headshot Shawn D.
Senior Applications Engineer
20 years at Instrumart
Luke M. headshot Luke M.
Applications Engineer
5 years at Instrumart
Dwight M. headshot Dwight M.
Senior Applications Engineer
28 years at Instrumart
Alex A. headshot Alex A.
Senior Applications Engineer
19 years at Instrumart
David S. headshot David S.
Applications Engineer
Ron J. headshot Ron J.
Temperature Engineering Lead
29 years at Instrumart
Rhys D. headshot Rhys D.
Applications Engineer
Shawn D. headshot Shawn D.
Senior Applications Engineer
20 years at Instrumart
Luke M. headshot Luke M.
Applications Engineer
5 years at Instrumart
Dwight M. headshot Dwight M.
Senior Applications Engineer
28 years at Instrumart
Alex A. headshot Alex A.
Senior Applications Engineer
19 years at Instrumart
David S. headshot David S.
Applications Engineer
Ron J. headshot Ron J.
Temperature Engineering Lead
29 years at Instrumart

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Testo 425 Thermal Anemometer
Testo 425 Thermal Anemometer
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