LOTE Sistema de Alarma Smart Tuya Seguridad para el Hogar WIFI GSM Control Remoto Inalámbrico para el Hogar
GSM Standard：Support GSM850/900/1800/1900MHz. App supports several alarm operation. Alarm Current：＜450mA. Host dial phone number preset by user when alarms, and number never lost even power off. Alarm Loudness：80dB.