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Product Name | HY-20A Wireless Door/Window Sensor |
Design | Designed by Micro-power consumption |
Function | Low power alert by LED indicator. Low Power report to alarm panel. Support N/C (Normal Close) interface, can connect wired devices.(Optional) Adopts SMT design to increase the stability support door open/dosed notification |
Battery | Battery capacity inspection. When voltage of battery<2.4V, the door magnet stop working. And the yellow light will be on |














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