General Tools DCFM8901 Two-Piece Airflow Volume Anemometer-Thermometer

The two-piece #DCFM8901 anemometer is ideal for measuring the airflow speed and volume output of exhaust fans and blowers. An optional software-hardware package turns the instrument into a PC data logger. Measures and displays air speed, airflow volume and ambient temperature Includes the replaceable #P8901vane air speed-temperature probe Min/Max memory + data hold Single- and multi-point averages Optional #ASFTKIT PC data logging software/hardware is available °F/°C switch Auto power off (can be disabled for data logging) Additional Information ManufacturerGeneral Tools IncludesCustom hard plastic carrying case Battery 1-year limited warranty Dimensions7.1 x 2.8 x 1.5 in. (181 x 71 x 38mm) Auto power offAfter 20 minutes of inactivity Power source"9V" battery (included) or optional #Z110VADPT AC adaptor Air speed measurement resolutions1 fpm, 0.01 m/sec, 0.1km/hr, 0.1 mph, 0.1 knots LCD size1.65 x 1.5 in. (42 x 37mm) Operating temperature32° to 122°F (0° to 50°C) @<90% RH Air speed measurement range/basic accuracy80 to 6900 ft./min (0.4 to 35m/sec, 1.4 to 126km/hr, 0.9 to 78.3 mph, 0.8 to 68 knots)/2% Ambient temperature measurement range/accuracy/resolution14° to 122°F (-10° to 50°C)/1°F (0.6°C)/0.1°