Tower Crane Anemometer Wind Speed Alarm LED Display Wall Mount Wind Anemometer with Alert Light Item Type: Wind speed alarm Material: ABS Weight: Approx. 1702g / 60oz Measurement Object: Wind speed, wind direction Wind Speed Sensor Cable: 2.5 meters Range: 0 to 70m/s Start Wind Speed: ≤0.8m/s Accuracy: ±(0.5+0.02V)m/s Alarm Decibel: 85dB or above 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 Output Mode: Relay switch output, 3 wiring contacts(permanent open, common, permanent close) Working Environment: Temperature -20℃-60℃, humidity 20%RH-90%RH(no condensation) Alarm Host Size: 152.5x90.5x55mm / 6.0x3.6x2.2in Installation Hole Distance: 135x52mm / 5.3x2.0in Wind Sensor Size: 155x70mm / 6.1x2.8in(height x base diameter) Application: Meteorology, agriculture and forestry, environmental protection, marine, airport, harbor, scientific research, campus education and other fields Menu Operation Process: 1. Power the host. The panel shows real time wind speed. "+" "-"key is invalid now. 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). 3. Press "+" or "-" key to switch to the wind level alarm mode (C L). 4. Press "Set" to enter the "Alarm Value Setting Interface". 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. Wiring Instructions: 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; 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. Wind Speed Wind Level: 0 to 0.2 m/s wind speed is 0 wind level shows smoke straight up. 0.3 to 1.5 m/s wind speed is 1 wind level shows smoke direction and subtle leaves move. 1.6 to 3.3 m/s wind speed is 2 wind level shows leaves move and people can feel wind. 3.4 to 5.4 m/s wind speed is 3 wind level shows tree branch move and flying flag. 5.5 to 7.9 m/s wind speed is 4 wind level shows tree branch move and dust papers up. 8.0 to 10.7 m/s wind speed is 5 wind level shows little tree move and little water waves. 10.8 to 13.8 m/s wind speed is 6 wind level shows big tree branch move and hard to hold umbrella. 13.9 to 17.1 m/s wind speed is 7 wind level shows whole tree move and hard to walk against the wind. 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. 20.8 to 24.4 m/s wind speed is 9 wind level shows big tree branch cut. 24.5 to 28.4 m/s wind speed is 10 wind level shows tree blow down and building damaged. 28.5 to 32.6 m/s wind speed is 11 wind level shows big tree blow down and building ruined. >32.6 m/s wind speed is 12 wind level shows severe damage. Button Introduction: "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.