I. Product Overview: QAS-2 digital weather instrument mainly used to measure the instantaneous wind speed, instantaneous wind direction, true wind speed, true wind direction, true wind speed average of two minutes, two minutes of average true wind direction, wind speed instantaneous average of two minutes, two instantaneous minute average wind direction, air temperature, relative humidity and atmospheric pressure. It is widely used in ships, offshore platforms, islands, airports, ground stations and the like. It is also equipped with VDR, GPS and other interfaces. Non-contact instruments propeller wind sensors can measure wind speed up to 70m / s, can also be used to measure the true wind speed of a ship, with a true wind. The measured data can be displayed through the digital microprocessor processes. Instrument by ship inspection bureau, suitable for all types of vessels and platforms. Instruments include wind speed and direction sensor, temperature and humidity sensors, monitors, cables. True wind speed, true wind through the input speed, heading back to the microprocessor computing obtained. The air temperature is given by the platinum resistance measurements. Air humidity is determined by measuring the dry and wet bulb temperature is calculated. Second, the technical indicators: Technical parameters Measuring range Accuracy Winds 1 ~ 70m / s (0.5 + 0.05V) m / s wind direction 0 ~ 360 ° 5 ° Pressure 850 ~ 1100mb 0.05% FS Temperature -30 ~ 45 ℃ 0.5 ℃ relative humidity 30 ~ 100% RH 5% RH ambient wind speed sensor working temperature: -30 ℃ ~ + 45 ℃; Relative Humidity: 0 ~ 100% RH and direction sensor temperature: -30 ℃ ~ + 45 ℃; Relative Humidity: 0 ~ 100% RH Temperature sensor temperature: -30 ℃ ~ + 45 ℃; Relative humidity: 0 ~ 100% RH humidity sensor temperature: -30 ℃ ~ + 45 ℃; Relative humidity: 0 ~ 100% RH pressure sensor temperature: -30 ℃ ~ + 45 ℃; Relative Humidity: 0 ~ 100% RH Power AC 220V ± 10% 50HZ 5W Origin: China