Feature:1. With the Connection Line Function: Power off after alarm, you can control the equipment that the customer wants to control, and the wind level will be powered off to the set level.2. Three Cup Wind Cup: The anemometer adopts three cup wind speed measurement, 360 wind speed measurement, high accuracy.3. Wide Measuring Range: Wind speed alarm measuring range is wide, anti interference ability is strong, with anti electromagnetic interference function.4. Power Failure Memory Function: The digital circuit of the wind speed alarm adopts a CMOS chip with power failure memory function, which saves time and power.5. In Normal Operation: The window wind speed shows the current actual wind speed Set wind level to display the current alarm wind level Maximum Wind level Indicates the maximum wind level of the day.Specification:Item Type: Fan Blades Tower Crane AnemometerWeight: 554g or 19.5ozPower Supply: USB 5VHost Size: 115 x 60 x 30mm or 4.5 x 2.4 x 1.2inMain Machine Mounting Aperture: 15 x 39mm or 0.6 x 1.5inInstallation Aperture of Wind Cup: 4cm or 1.6inWind Cup Cable: 8m or 26.2ftApplication Scenario: wind speed measurement in power plant, weather stationWind Level Accuracy: 0.3Set Wind Level: 2-12 (can be set by 0.5 or each time)Accuracy: 5 percent Starting Wind Speed: 0.7m or sOperating Temperature: -30-65Material: Plastic.Package List:1 x Alarm Wind Speed Meter with Cable1 x USB Cable 1 x Fixed Support 1 x Fixed Support Accessories 5 x Screw 5 x Nut