KEY FEATURES

• Fast and accurate air velocity, temperature, and volume flow measurements in ventilation ducts
• Cable-connected telescopic hot wire probe extends up to 820 mm for convenient duct access
• Quick duct configuration, graph history, second-screen display, and measurement memory via the Testo Smart App
• Timed and point mean value calculations for reliable airflow analysis
• Ideal for HVAC commissioning, ventilation balancing, and duct performance testing

The Testo 425 Hot Wire Anemometer with Flow Probe is a professional instrument designed for precise airflow, temperature, and volume flow measurements in ventilation ducts. Equipped with a cable-connected telescopic hot wire probe extending up to 820 mm, it provides easy access to deep duct systems while maintaining excellent measurement accuracy. Integration with the Testo Smart App enables fast instrument configuration, live graphing, second-screen functionality, measurement storage, and efficient reporting. Timed and point averaging functions simplify airflow analysis, making the instrument ideal for HVAC commissioning, system balancing, maintenance, and indoor air quality inspections.

ADDITIONAL FEATURES

• Integrated Testo Smart App support enables wireless configuration, live monitoring, data storage, and report generation
• Telescopic hot wire probe provides excellent flexibility when measuring airflow inside ventilation ducts
• Timed and point average calculations improve airflow balancing and system performance verification
• Protective carrying bag safeguards the instrument during transport and field use
• Long battery life ensures dependable operation throughout extended inspection and commissioning tasks

APPLICATIONS

• Ideal for HVAC commissioning, duct airflow measurements, ventilation balancing, air velocity testing, temperature monitoring, volume flow calculations, and preventive maintenance in commercial and industrial ventilation systems.

PRODUCT PACKAGE INCLUDES

• 1 x Testo 425 Thermal Hot Wire Anemometer with 820 mm Telescopic Flow Probe and Smart App Connectivity (SKU: 0563 0425)
• 1 x Protective Carrying Bag
• 3 x AA Batteries
• 1 x Factory Calibration Protocol

SPECIFICATIONS

The contents of this document are provided as a guide only and are subject to change without prior notice, and without any subsequent liability to Parkway Process Solutions Pty Ltd (the “Company”) or any of its related entities. The actual shape, colour, size, performance and/or any other parameters of the item(s), product(s), and/or system(s) supplied by the Company may vary materially from those outlined by the Company.

All brand names and product names outlined in this document are either trademarks or registered trademarks and belong to their respective companies.

ALL INFORMATION OUTLINED HEREIN IS PROVIDED AS A GUIDE ONLY AND SHOULD NOT BE RELIED UPON FOR ANY PURPOSE WITHOUT CONFIRMING SUCH DETAILS WITH THE COMPANY BEFORE MAKING A PURCHASE AND/OR UTILISING A GIVEN PRODUCT.

ADDITIONAL RESOURCES

PRODUCT BROCHURE

General information about the Testo 425 Hot Wire Anemometer with Flow Probe is outlined in the brochure below.

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