The testo 417 is a compact, high-performance digital vane anemometer engineered for simple yet precise airflow measurement at ventilation system inlets and outlets. With a built-in 100mm vane, the instrument delivers fast and accurate readings of air velocity, volume flow and temperature—ideal for HVAC testing, commissioning and maintenance.
Thanks to seamless integration with the testo Smart App, the testo 417 allows for effortless configuration, real-time display (including a second-screen view on your smartphone), data logging, and automatic report generation—all from a single platform. The App also visualises results with historical graphs and provides a memory function for measurement sessions, greatly improving workflow efficiency.
The testo 417’s ability to automatically calculate time and point average values, as well as volume flow, makes it particularly useful for balanced residential ventilation systems. It enables users to quickly and accurately adjust systems for optimal performance, with full documentation available instantly via the App.
Robust yet portable, and backed by Testo’s engineering quality, the testo 417 is an indispensable tool for HVAC professionals seeking reliable performance and smart functionality in one compact device.
- Fast, accurate measurements – measures flow velocity, volume flow and air temperature with precision at both air inlets and outlets
- Integrated 100mm vane – ensures quick, stable readings, ideal for residential and commercial ventilation systems
- Smart App connectivity – connects to the testo Smart App for easy configuration, second-screen display, data logging and report generation
- Efficient ventilation adjustment – automatically calculates time and multi-point averages for balanced residential ventilation setup
- Supplied with: testo 417 - 100mm vane anemometer with App connection, transport bag, calibration protocol, 3 x AA batteries
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