REACHFAR V23 4GInternet Door Sensor Alarm Home Door Window Sensor Alarm Xiaomi Spare Parts Need not extra power supply

Need not extra power supply

Weight: 136g

High quality power button and volume button replacement for Huawei P9

Supports up to 127 Hi-Speed devices

REACHFAR V23 4GInternet Door Sensor Alarm Home Door Window Sensor Alarm Xiaomi Spare Parts Need not extra power supplyThe main function: 1. 4G network 2. SOS for help 3. Waterproof grade IP67 4. Web platform App SMS alarm information 5. Door sensor alarm 6. Low battery alarm 7. Two way conversation Product specifications: 1. Frequency band: 4G FDD: B1 B2 B3 B5 B7 B8 B20 B28A; 3G WCDMA: B1 2 5 8 2G GSM: B2 3 5 8 2. Working temperature: 20 degrees Celsius 80 degrees Celsius 3. Working humidity: 5 percent 95 percent RH 4. Battery capacity: 2000mA 5. Standby time: 35 40