Testo 420 | Balometer

The Testo 420 is an easy to use high accuracy lightweight volume flow hood specifically designed for the HVAC market which includes use in clean rooms and systems employing the use of swirl diffusors. The standard assembly with the 610 mm x 610 mm hood weighs just 2.9 kg which makes the instrument ideal for use over extended periods, and it has been designed with the user in mind with ergonomic handles, adjustable display panel, a long battery life and a range of accessories.

Features

• Light weight, at only 2.9 kg with the standard hood assembly its lighter than any other similar hood in the market.
• Built in flow straightener specifically designed for use with outlets generating turbulent air patterns.
• Easy to use Bluetooth mobile App which enable you to both receive and send messages to the instrument.
• Ergonomic design with a tilting display for easy of viewing measurements and comfortable handles
• Quick set-up with a meter display life of 30 hours.
• Custom designed carry case for easy transportation.

Technical

Air volume range        40 to 4000 m³/h   (11.1 to 1111.1 l/s)

Air volume measurement units       m³/h, m³/min, cfm and l/s

Air volume accuracy      ±3 % of m.v. + 12 m³/h ± 1 digit

Differential pressure range      0 to 120 Pa

Differential pressure units       Pa, hPa, mbar, mmH₂O and inH₂O

Differential pressure accuracy      ± 2 % of m.v. + 0.05 Pa

Differential pressure resolution      0.0001 Pa