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When an emergency occurs, press the middle button to call for help through the gateway. The gateway alarms locally and pushes the message to the user APP. The button can be used as a smart switch to realize device linkage.
Wireless protocol: Zigbee Transmit power: ≤15dBm Working voltage: DC 3V Installation: Destop/Wall-mounted Battery life: >1 year(20 times/day) Transmit frequency: 2.4GHz Communication distance: 200m Receiving sensitivity :-96dBm Operatign temperature: -14?to+131? Appearance size: Φ50x16mm
