1.900/1800/1900MHz gsm bands
2.Voice guide when call communication
3.SMS could be edited for every zone
4.Power Off inform

DIY GSM Home Security Alarm System

Features:

GSM 900/1800/1900 bands, can be used in most parts of the world
Full duplex communication with the host
Monitor the scene environment
Voice and message alert
Set alarm ON or OFF by remote controller
Can set Home Arm and Out Arm mode(Partial Arm Function)
Call in to set alarm ON, OFF, Monitor, Output, Intercom.
Send SMS to set alarm ON, OFF, Monitor, Output
6 voice phones and 3 message phones
4 zones for wired detector
6 zones for wireless detector 
1 outputs, can be used with external circuit to control home appliance
Easily set ON or OFF for every wired or wireless detector
SMS inform if external power failure or recovery
Built-in back-up battery

Technical Parameter:

Operating Voltage: DC 12V
Static Current: ≤20mA
Alarm Current: ≤400mA
Wireless Receiving Frequency: 433MHz±0.5MHz/315MHz±0.5MHz
Wireless Receiving Sensitivity: 433MHz±0.5MHz/315MHz±0.5MHz
Anti-interference: 1V/m(frequency:20-1000 MHz)
GSM frequency: 900/1800/1900MHZ
Outer Alarm siren volume: 110dB
Working condition: Temperature: -10°C~50°C
Humidity : ≤90%
Wired Zone : 3
Wireless Zone: 16

Basic component:
-Alarm system (control unit) – 1 pc.
-Wireless PIR detector – 1 pc.
-Wireless door (gap) sensor – 1 pc.
-Remote controller– 2 pcs.
-Antenna – 1pc.
-Mini wired siren 110dB/0.3m – 1 pc.
-Power adpater – 1pc.
-User manual – 1pc.