Tuya Smart WiFi GSM Home Alarm Big Kit
◆ Work with Amazon Alexa/Google Assistance;
◆ 4.3 inch touch screen LCD;◆ Input Voltage:5V/1A;
◆ Up to 200 Deterctors+Remote Control, Doorbell(up
to 6◆ 7 zone modes;◆ Low-battery detection/Power
off detection◆ 5 groups of alarm phone/SMS NO.
◆ Built in battery to enable the alarm panel continue
work when no WiFi;◆ GSM support Two-way audio;
◆ OTA online upgrade supported;
◆ 2G GSM frequency: 850/900/1800/1900MHz