1、2.4 inches TFT display, brief user interface and menu prompt design, support date and clock display. 2、WIFI/GSM/GPRS intranet alarm system, supports APP push, SMS, language monitoring, intranet center and other alarm channels to ensure stable and reliable alarm performance. 3、Support multi-language menu display, voice prompts and alarm SMS settings. It can record 20S language information and alarm voice. The GSM network clock is synchronized to ensure that the clock is accurate and supports national time zone settings. 4、Support multiple defense areas, such as door, bedroom, window, balcony, surrounding, carbon monoxide, water leakage, etc. 5、Support online GPRS to obtain device status, and automatically alarm when offline. Item Type: Alarm Systerm Material: ABS Host (Built-in Battery): Emission Current: <120mA Standby Current: <80uA Siren Output: <500mA Wireless Frequency: 315MHZ / 433MHZ / 868MHZ Code: EV 1527 GSM Frequency Band: 850/900/1800 / 1900MHz WiFi Standard: IEEE802.11 b/g /n wireless standard Backup Battery: 3.7V / 1000mAh lithium battery Working Temperature: -10-55℃ Door Magnetic Sensor Power Supply (Built-in Battery): A CR2032 battery 80mAhInfrared Detection Power Supply: (Battery Not Included) 2 x AAA battery Remote Control Power Supply (Built-in battery): 1 x CR2025 battery 80mAh 1 x Alarm Host 1 x Infrared Detector 1 Pair x Door Sensor 2 x Remote Control 2 x Access Control Card 1 x Horn 1 x Charging Cable 1 x Charging Head 2 x Hook and Loop Tape 1 x Screw Pack 1 x Installation Base 1 x Manual