Security Alarm System Volume (within 1m) – ≥80dB, Back up Battery –

3.7V/1000mAh Lithium Battery, GSM Band –

850/900/1800/1900MHz, Mobile APP – Smart Life, Optional

Sensor – Smoke/Gas/Motion/Sos/Siren/Multi Sensors etc.,

Power Input – DC5V , System Receive Frequency –

433.92MHz, Support – Alexa, Googlehome System Support –

Ios and Android, Transmission Mode – Wireless WiFi

Standard – IEEE802.11b/G/N, 2.4GHz, Wireless Frequency

433 MHz,3 wired zone

A security alarm is a system designed to detect intrusions, such as unauthorized entry, into a building or other areas, such as a home or school.