Measures air velocity, volume flow, and temperature
Measures in-duct air flow and automatically calculates volume flow (enter duct dimensions simply)
Small dia. (<0.5") and 15" telescopic shaft length is ideal for in-duct flow averaging and timed traverse
Perform air duct leakage tests
Includes: testo 405i, Bluetooth hot-wire anemometer with App, 3 AAA batteries and certificate of calibration
Hot Wire measuring range 0 to 6,000 fpm Accuracy ±(9.9 fpm +2.5% of m.v.) (0 to 400 fpm) ±(29.5 fpm +2.5% of m.v.) (400 to 3,000 fpm) Resolution 2 fpm Volume flow (cfm) 0 to 99,999 cfm (Resolution: 0.1 cfm) NTC measuring range -4 to 140°F Accuracy ±0.9°F Resolution 0.1°F Users can read the measurements using the testo Smart Probes App installed on their smart device. The app lets users configure duct dimensions to calculate volume flow measurements. Use the testo 405i along with the testo 605i thermo-hygrometer to determine cooling and heating performance. The testo 405i works on smart devices with either Android or Apple operating systems.