Feature:1. Wind speed alarm device: provides an alarm function za using the appropriate connection cable to control selected devices and automatically cuts off the power when the wind reaches the set level. 2. Wind cup with 3 cups: This anemometer has a three cup design, allowing you to measure wind speed in the range of 360 degrees with high accuracy. 3. Wide measuring range: The wind speed meter has a wide measuring range and strong anti-interference properties, with built-in protection against electromagnetic interference. 4. Power failure memory function: It uses CMOS chip with power loss memory function, saving time and energy. 5. Durable: The anemometer is made of aluminum alloy, a ABS material that is resistant to rain, dust, and collisions. . Tower Crane Anemometer Alarm Speed Meter . Tower Crane Anemometer Alarm Speed Meter Specification: Item Type: Tower Crane Wind Speed Meter Material: aluminium alloy, ABS Weight: approx. 676 g / 23,8 oz Power supply: USB 5V Input voltage (actual operating voltage): 220 V Product Size: approx. 10,8 x 7,3 x 3 cm / 4,3 x 2,9 x 1,2 inches Mounting hole size: approx. 9,7 x 5,3 cm / 3,8 x 2,1 inches Windshield mounting hole: 4 cm / 1,6 inch Windshield cable length: 8m/26,2ft Suitable scenes: wind speed measurement in power plant, meteorological station Wind class accuracy: Class 0,3 Accuracy: ±5% Initial wind speed: 0,7 m/s Operating temperature: -30-65 ℃ . Tower Crane Anemometer Alarm Speed Meter . Tower Crane Anemometer Alarm Speed Meter How to use: A direct USB plug is used. . Tower Crane Anemometer Alarm Speed Meter . Tower Crane Anemometer Alarm Speed Meter Package List:1 x Tower Crane Wind Speed Meter 1 x Connection Cable 1 x Mounting Bracket 1 x akcesoria for mounting brackets 5 x Screws 5 x Nuts 1 x USB cable 1 x Windshield with Cable . Tower Crane Anemometer Alarm Speed Meter . Tower Crane Anemometer Alarm Speed Meter