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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: ZigbeeTransmit power: ≤15dBmWorking voltage: DC 3VInstallation: Destop/Wall-mountedBattery life: >1 year(20 times/day)Transmit frequency: 2.4GHzCommunication distance: 200mReceiving sensitivity :-96dBmOperatign temperature: -14?to+131?Appearance size: Φ50x16mm
