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|Country/Region:||Guang Dong - China
|Last Online:||28 Nov, 2017
1.Measuring the distance by sensors
2.Alarm by three step Bi-Bi sound
3.2-8 sensors are available
4.Full-weather design, un-affected by wind, ice, snow & rain
5.With 4 waterproof connectors sensors,easy to replace when sensors defective.