GSM /PSTN Dual-Network Wireless Alarm Systems (LY-GSMWA001)
Wireless GSM Alarm System features:

Model No.	LY-GSMWA001	LY-GSMWA001Q
GSM Frequency	900/1800MHZ	850/900/1800/1900MHZ
Wireless Frequency	433MHz, (868MHz optional with extra charge )

● Inbuilt touch keypad, blue backlight for keypad
● LCD display, customized language display available
● 31 wireless zones, (8 wired zone optional)
● Alarm report by: phone call and SMS
● 5 telephone/mobile phone numbers can be preset
● Arm/Disarm by: inbuilt keypad, remote,phone call, SMS, (wireless keypad optional)
● AC/DC both available
● Alert of weak power, no power, phone cable disconnection
● Monitoring and alert of door/window status (optional)
● Doorbell function (optional)
● "Black Box": 100 work history and 100 alarm history 
● Compatible with CID Protocol (extra GSM SMS connector required)
● Wireless Frequency 433MHz, (868MHz optional)