The compact Testo 417 Vane Anemometer Set 1 is designed to simplify the process of measuring airflow on air inlets, outlets, and plate outlets of air conditioning and ventilation systems. Equipped with an integrated 100 mm vane, this anemometer ensures precise results quickly. The device automatically calculates time and point average values as well as volume flow, displaying them clearly for efficient adjustment of balanced residential ventilation systems. Key Features Integrated 100 mm Vane: Delivers quick and accurate measurements. Automatic Calculations: Time and point averages, along with volume flow, are computed and displayed. Efficient Ventilation Adjustment: Ideal for balanced res