Weather Environment Sensor 5 in 1 for RS485 Signal Wind Speed Wind Direction Temperature Humidity Pressure Micro Weather Sensor DC9V‑30V Item Type: Weather Environment Sensor Material: ABS Weight: Approx. 710.00g / 25.04oz Outlet: Aviation Socket, Sensor Cable Length: Approx. 3m/9.8ft Guard Grade: IP65 Operating Voltage: DC9V-30V Power Consumption: 200mW Output Signal: RS485 Signal Working Environment Humidity:0~100 Percent RH Operating Temperature: -40℃~+70℃ Size: Approx. 151x100mm / 5.94x3.94in  Environmental Elements Range Degree of Accuracy Resolution Power Consumption Wind Speed 0-45m/s Start Wind Speed≤0.8m/s 0.01m/s 0.12W ±(0.5+0.02V)m/s Wind Direction 0-360 ±3° 1° Atmospheric Temperature -40-80℃ ±0.3℃ 0.1℃ 1mW Atmospheric Humidity 0-100 Percent RH ±5%RH 0.1%RH Atmospheric Pressure 300-1100hPa ±0.5 hPa(25℃) 0.1 hPa 0.1mW Electronic Compass 0-360 ±5° 1° 10mW Widely used in: garden, greenhouse, environmental guard, weather stand, ships, wharf, aquaculture, advertising gates, meteorology, marine, environment, airports, harbors, laboratories, industry, agriculture and transportation and other environments of wind direction measurement. Wiring schematic: 485 signal output, the bottom of the sensor has a 4-pole aviation plug, its pin corresponding to the pin definition is as follows: 1. Power positive VCC (Red) 2. Power negative GND (Green) 3. 485A+ (Black) 4. 485B- (Yellow) Note: Make sure the wiring is correct before powering on. Troubleshooting : 1. The meter display value is not correct when for RS485 is output. The meter may not be able to acquire data correctly due to wiring problem or telecommunication serial port failure. Please check whether the wiring is correct and firm, whether the serial port is occupied, and whether the serial port is set correctly; 2. If it is not the above reasons, please contact service.