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Testo 425 - Hot Wire Anemometer

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Trending in Airflow & Air Quality 2 people viewed this
Testo 425 - Hot Wire Anemometer
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The Story

The Testo 425 hot wire anemometer provides simple, fast, and precise measurement of airflow velocity, temperature, and volume flow in ventilation ducts for HVAC systems. With its cable-connected telescopic probe extending up to 820 mm and seamless integration with the Testo Smart App for configuration, data display, and documentation, this compact instrument is ideal for ensuring optimal air conditioning and ventilation performance in modern buildings.

add_circle The Upside

  • check Accurate and reliable measurements for HVAC system optimization
  • check App connectivity enhances data management and documentation efficiency
  • check Telescopic probe allows access to overhead or large diameter ducts

remove_circle The Downside

  • close Requires three AA batteries (not included or may need replacement)
  • close May have a learning curve for users unfamiliar with anemometers or the app
  • close Higher price point typical of professional Testo measurement instruments

Specifications & features

Key features

  • check_circle Hot wire anemometer for precise airflow velocity and temperature measurement
  • check_circle Cable-connected telescopic probe extends to 820 mm for flexible duct access
  • check_circle Testo Smart App integration for configuration, display, and data storage
  • check_circle Automatic volume flow calculation and timed/point mean value computation
  • check_circle Compact and robust design with included transport bag and calibration protocol

Specifications

Connectivity

Testo Smart App integration

Included Accessories

Transport bag, calibration protocol

Maximum Probe Length

820 mm

Measurement Type

Hot wire anemometer for airflow velocity and temperature

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