Anemometer _ Jinke Electronics Instrumentation (certified) _ anemometer provided by Qingdao Branch of the Instrument Co., Ltd .. Qingdao Branch of the Instrument Co., Ltd. (www.qdjk17.com) is specialized in the "mapping equipment, analytical instruments, testing equipment, flow meters, optical instruments, temperature instruments," the enterprise, the company of "honesty, hard service" concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Li Yongjie. How it works: 1, the basic principle of measuring the wind speed is the use of this instrument calorimetric principle wind. Measuring wind speed sensitive parts of a diameter of about 0.8mm hot ball anemometer factory, so called hot bulb anemometer 2, the basic principle of temperature measurement: The instrument used precision thermistor temperature measurement as the sensing element. Use the thermistor resistance changes with temperature characteristics of measuring temperature 3, the measurement of relative humidity Rationale: The instrument used by the US company Honeywell as a measurement of relative humidity sensor, using its output varies with the relative humidity of the characteristics to measuring relative humidity wind speed measurement units Range Resolution Accuracy m / s 0.1 ~ 25.0 0.01 ± (5% + 1d) reading or ± (1% + 1d) full scale km / h 0.3 ~ 90.0 0.1 ft / min 20 ~ 4925 1 MPH 0.2 ~ 55.8 0.1 knots 0.2 ~ 48.5 0.1 air temperature measurement Measuring range 0 ~ 50 ℃ Resolution 0.1 Accuracy ± 1 ℃ air flow measurement units range Resolution CFM 0-99999ft3 / min 0.001 ~ 100 CMM 0-99999m3 / min 0.001 100 Specifications Display screen with backlit dual display large sampling rate of about .0.8 seconds Operating temperature 0 ~ 50 ℃ Operating Humidity <80% RH Power Supply 9V battery Dimensions 210 × 75 × 50 mm Weight 280 g