1.APPLICATION Widely used in data collection for boiler, refrigeration industry, ventilation duct, environment monitor, navigation measurement, weather forecast, collection of the weather datum for outdoor busywork and fire department. 2. SPECIFICATIONS 2.1 General Specifications Display 0.5" (13 mm) 4-digit LCD Measurement units Air Velocity: m/s, km/h, ft/min, knots Air Flow: CMM (m3/min); CFM (ft3/min) Beaufort Scale: Force Wave Height: m Direction: °from the North direction Temp: °C & °F Data hold Maximum Value Data memorized 24 groups Sampling rate reading per second approx Sensors Air velocity/flow sensor: 3-cup probe Direction probe: Low friction probe Temperature sensor: Precision thermistor Automatic Power off 0-9 minutes set by users Data Output RS 232 C serial interface Operating Temperature 14°F to 140°F (-10°C to 60°C) Operating Humidity Max. 80% RH Power Supply 4x1.5AAA size Weight 260g (0.57lb) including batteries & probe Dimensions Main instrument: 156x67x28mm (6.1x2.6x1.1") Velocity sensor: 65x65x115mm Direction sensor: 86x69x115mm Optional Accessories Cable+Software for RS232C or USB 2.2 Range Specifications