Use GSM wireless communication network to support SMS and voice alarm, audio and text message can overwrite  
Fault detection and alarm functions with telephone line, independent alarm SMS and language
Circular dial 4 or 8 sets telephone or cell phone number, stored numbers can be up to 16-bit
Alarm provides 20 or 40 second recorded message tells the user when alarm
Trigger mode can be set to normally open, normally closed, or 12 volts DC trigger alarm dial
Trigger relay linkage output after 15 min
Programmable alarm conditions, reply 8 stops the current alarm number groups, reply stop all the alarm number 9 group;
SMS supports remote control removal, live keyboard removal
Other CDMA alarm mode, 3G, such as wireless communication networks, and can be customized

★ Operating voltage: 11-15V/DC
★ Current: 40/160mA 

★ Product weight (gross): 0.35kg

★ Product dimensions (length x width x height): 140x30x90mm

★ Telephone:
★ Tel: 4 or 8 sets optional
★:900MHz/1800MHz/950MHz/1900MHz  GSM frequencies (optional)
¡Ï alarm inputs: normally open, normally closed, or 12V/DC (an alarm trigger)