Item Type: Wind speed alarm_x000D_Material: ABS_x000D_Weight: Approx. 1702g / 60oz_x000D_Measurement Object: Wind speed, wind direction_x000D_Adapter: US plug 100-240V_x000D_Wind Speed Sensor Cable: 2.5 meters_x000D_Range: 0 to 70m/s_x000D_Start Wind Speed: 0.8m/s_x000D_Accuracy: (0.5+0.02V)m/s_x000D_Alarm Decibel: 85dB or above_x000D_Alarm Value Setting: Wind speed value 0 to 35m/s, plus or minus 1m/s at a time; wind level 0 to 12, plus or minus 1 level at a time_x000D_Output Mode: Relay switch output, 3 wiring contacts(permanent open, common, permanent close)_x000D_Working Environment: Temperature -20-60, humidity 20%RH-90%RH(no condensation)_x000D_Alarm Host Size: 152.5x90.5x55mm / 6.0x3.6x2.2in _x000D_Installation Hole Distance: 135x52mm / 5.3x2.0in _x000D_Wind Sensor Size: 155x70mm / 6.1x2.8in(height x base diameter)_x000D_Application: Meteorology, agriculture and forestry, environmental protection, marine, airport, harbor, scientific research, campus education and other fields_x000D_Menu Operation Process:_x000D_1. Power the host. The panel shows real time wind speed. "+" "-"key is invalid now._x000D_2. Press the "Set" key to switch the panel to "Alarm Mode Interface", the panel shows that the wind speed value alarm mode (C S)._x000D_3. Press "+" or "-" key to switch to the wind level alarm mode (C L)._x000D_4. Press "Set" to enter the "Alarm Value Setting Interface"._x000D_5. Press "" or "-" key to set the alarm value, press "Set" key to return to the real time wind speed display interface. The modified parameters will be saved automatically. _x000D_Wiring Instructions:_x000D_1. When the wind speed value does not reach the set alarm value, the red line and black line are connected, and the black line and yellow line are disconnected;_x000D_2. When the wind speed value reaches the set alarm value, the red and black lines are disconnected, and the black and yellow lines are connected._x000D_Wind Speed Wind Level:_x000D_0 to 0.2 m/s wind speed is 0 wind level shows smoke straight up. _x000D_0.3 to 1.5 m/s wind speed is 1 wind level shows smoke direction and subtle leaves move. _x000D_1.6 to 3.3 m/s wind speed is 2 wind level shows leaves move and people can feel wind._x000D_3.4 to 5.4 m/s wind speed is 3 wind level shows tree branch move and flying flag._x000D_5.5 to 7.9 m/s wind speed is 4 wind level shows tree branch move and dust papers up._x000D_8.0 to 10.7 m/s wind speed is 5 wind level shows little tree move and little water waves._x000D_10.8 to 13.8 m/s wind speed is 6 wind level shows big tree branch move and hard to hold umbrella._x000D_13.9 to 17.1 m/s wind speed is 7 wind level shows whole tree move and hard to walk against the wind._x000D_17.2 to 20.7 m/s wind speed is 8 wind level shows little tree branch cut and very hard to walk against the wind._x000D_20.8 to 24.4 m/s wind speed is 9 wind level shows big tree branch cut._x000D_24.5 to 28.4 m/s wind speed is 10 wind level shows tree blow down and building damaged._x000D_28.5 to 32.6 m/s wind speed is 11 wind level shows big tree blow down and building ruined._x000D_>32.6 m/s wind speed is 12 wind level shows severe damage._x000D_Button Introduction: _x000D_"Set" key is used to switch "real time wind speed display", "alarm mode selection interface" and "alarm wind speed or wind level setting interface", "+" key is used to adjust the preset parameter value plus 1, "-" key is used to adjust the preset parameter value minus 1. 1INTELLIGENT WIND SPEED ALARM METER: Equipped with a smart microprocessor and high dynamic wind measurement sensor, this meter accurately measures and alerts you to instantaneous wind speeds in the environment. 2BRIGHT LED DISPLAY: Features a high brightness LED digital screen that shows real time wind speed values, making it easy to read in any lighting conditions including day and night. The display panel shows date, time, wind level, wind speed and wind direction value. 3DUAL RELAY SWITCH OUTPUT: The device utilizes a one way dual relay switch to control output, ensuring efficient and stable operation. 3 buttons on the panel can be used to set alert value of wind speed or wind level. 4BUILT IN MULTIPLE PROTECTION: With multiple built in protective functions, this meter provides stable and reliable performance throughout its lifetime. Plus, the built in large capacity flash storage enables to store data for at least 1 year and can be download to software to make further study. 5CONVENIENT DESIGN: The wall mounted ABS casing design allows for easy installation, making it ideal for large and medium sized construction tower cranes, lifting machinery, suspended platforms, and cable cars. 1 x Adapter 1 x Alarm Host 1 x Power Cable 1 x Wind Speed Sensor 1 x English Manual 1 x Alert Light