Multifunction Anemometer PCE-VA 20

- Air flow velocity measuring range: 0.2 ... 30 m/s (39.4 ... 5905.5 fpm) - Air flow velocity accuracy <20 m/s: ± (1.5% of rdg. + 0.3 m/s), >20 m/s: ±(3% of rdg. + 0.3 m/s) - Air temperature measuring range: -20 ... 60°C / -4 ... 140°F - Air temperature accuracy: ±0.6°C - Air temperature resolution: 0.1°C / °F - Humidity measuring range: 0.1 ... 99.9% r.H. - Humidity accuracy: ±3% r.H. (at 25°C / 77°F and 10...90% r.H.), else: ±5 % r.H. - Humidity resolution: 0.1 % r.H. - Temperature response time: 60 seconds - Humidity response time: 60 seconds - LCD update: 1 x per second - Wet bulb temperature display: -20 ... 59.9°C / -4 ... 139.8°F - Dew point temperature display: -5 ... 59.9°C / 23 ... 139.8°F - Volume flow display: 0 ... 99999 m³/min - Volume flow resolution: 0.1 m³/min (0...9999,9 m³/min), 1 m³/min (10000...99999 m³/min) - Measures air flow velocity, volume flow, relative humidity, air temperature, dew point temperature and wet bulb temperature - 10 cm / 3.9" Ø fan impeller - Easy-to-read backlit LCD - Display hold, average value, maximum value, minimum value, battery-saving automatic power off, low battery indicator, and metric or imperial unit selection functions