Testo 425 heat ray type wind speed air flow meter Anemometer

Features With a telescopic handle that extends up to 820 mm, it is suitable for wind speed measurement in hard-to-reach places. use Wind speed measurement in the duct. Breeze speed measurement at the work site. Product specifications Specifications / Standards Width x Depth x Height: 64 x 40 x 182 mm Measured wind speed range (m / s): 0 to 20 Decomposition energy (m/s): 0.01 Power supply: Stacked 9V battery x 1 (included) Wind speed measurement accuracy: ± 1 digit ± (0.03 m / s + 5% of measured value) Measurement method: hot wire, NTC Decomposition energy: 0.01m/s, 0.1℃ Continuous use time: 20 hours Measurement temperature range (℃): -20 to 70 material - Mass / mass unit 285ｇ Conditions of Use - Precautions - Set contents / accessories - country of manufacture China