Measuring range: 0.6 to 40 m/s Accuracy: ±(0.2 m/s + 1.5 % of mv) 2) General technical data Housing: ABS Battery type: 9V block battery, 6F22 Battery life: 80 h Dimension: 182 x 64 x 40 mm Weight: 325 g Included: testo 416 vane anemometer with permanently connected 16 mm telescopic vane (max. length 890 mm), batteries.