GSM alarm system technology, with very simple wireless set up and easy-read words OLED display. Wi-Fi APP is much more simple and quickeroperation. Support Monitoring andtwo-wayintercom function. The alarmwarning through Phone Call/Phone Message/Phone APP Push Widely used in homes, factories, schools, shops, convenience stores, finance rooms, villas, residential areas and other places that require protection, ensuring the safety of people and property in all aspects., Manufacturer: CCZRD