Quick setup, easy to use, integrated flow straightener, the testo 420 is one of the most accurate and easy to use capture hoods on the market.
The CEC compliant testo 420 air flow capture hood with Bluetooth is the accurate, lightweight, and convenient solution for measuring volume flows at supplies and returns. Handling this air flow capture hood with its flow straightener and tiltable display is especially easy, with its low weight of less than 6.4 lbs, 24″ x 24″ included hood dimensions, and ergonomic handles.
