24/7 Lifeguard for Your Family This door/Window Sensor Will Send Signal to your kerui alarm system when burglar opens door (wireless door sensor activates when magnetic sensor separates),And The Kerui Alarm System Will Alerts & SMS To You Easy to install stick them to the door or window is fine System Introduction: Built-in AntennaOperating Power: CR2032Transmission frequency: 433MHzIt will send the alarm signal to control host once the door or window is opened Note This sensor can't be used independently. It needs to work with the panel which is the same as this sensor's parametter. And it is not universal for all the panel. Plz contact with us firstly before you order if you don't know clearly. We don't take any responsible because of your false order. Thanks! Product Detail Compound multi-layer designBuilt-in omnidirectional antennaSuperior circuit designHigh-performance and low power consumptionSuperior ABS materialWorking frequency:433MHzShock resistence:4.7M,1.2M.3.5M,300kTransmission distance:50-150m in open area.
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