Multi-function Lcd Gsm Alarm System G50b

We are instrumental in providing to our valuable customers excellent quality Multi-Function LCD GSM Alarm System G50B which is available with following Features:-
Built-in GSM antenna, support quad band GSM 900/1800/850/1900MHz, suitable for global users.
This is an absolutely GSM wireless home alarm system which based on GSM 900/1800/850/1900MHz wireless network and it has internal auto dialer, will call up to 3 preprogrammed alarm phone numbers.
Alarm panel with LCD display & keypad, easy to operate. Don't need professional person to operate and install. The LCD display screen will display the alarm zone number or alarm types, etc. From the keypad and LCD display, you may also check what alarm numbers has been programmed (with password protection)
SMS alert features : If any wireless sensors are triggered, the GSM alarm control panel wil send SMS to preprogrammed cell phone numbers for alerting, eg. Wireless door magnetic sensor, wireless PIR motion detector, etc.
(New) Automatically detect window/door closed properly or not, if the window/door (that have installed wired door sensor) did not closing well, the alarm panel will self-detect this issue and make a di dia beep sounds to let the householder pay attention to it.
Tow way communication. Just like a phone that support listen in and talking to the people that in the house.