Pengenalan
Sistem alarm GSM mengadopsi jaringan GSM dan teknologi terbaru Digital Signal Processing, dan secara luas digunakan dalam bidang keamanan.
Dengan transmisi data SMS dan platform suara jaringan GSM, ini benar-benar menyadari kontrol alarm nirkabel dan manajemen kontrol yang dapat memecahkan keterbatasan transmisi data kabel telepon dan jaringan kabel.
Jaringan GSM sangat populer di dunia sekarang ini, sehingga produk GSM alarm bisa berlaku luas untuk instalasi keamanan, data yang memantau dalam sistem pengawasan jangka panjang di daerah yang sama seperti keluarga,
Tenaga Listrik, Transportasi, Minyak bumi, Batubara, Kereta api, Pemerintah, Kepolisian dll.

Main Function
1. Adopt wavecome double frequency GSM module.
2. With color LCD show screen and keyboard on the host
3. 11 wireless guarding zones ( 1 wireless SOS zone, 1 fire alarm zone, 1 external power failure alarm zone , and other 8 wireless guarding zones can be defined by user )
4. Send SMS to 3 mobile phones automatically while alarming
5. Call 3 phones automatically while alarming and drive # 160; wiretap
6. Set the time of arm/ disarm/ partial arm
7. Arm/ disarm/ partial arm by the keyboard on the host, remote controller or SMS.
8. Set the host by keyboard on the host or SMS
9. Modify the name of 8 wireless guarding zones and inquire the status of host by SMS demand
10. Define the 8 wireless guarding zones as partial arm/ arm by keyboard on the host
11. With standby rechargeable battery
12. The host automatically stores system status, while its power is off
13. Connect with the alarm center through GSM network

Specification
a. Zone
11 Wireless guarding zones;
Working frequency between detector and alarm host( 315M/ 433M optional )
b. GSM
GSM frequency: 900/ 1800MHz & 850/ 1900MHz ( optional)
The frequency of Model No.G20E: 900/ 1800MHZ
The frequency of Model No.G20EA: 850/ 1900MHZ
Consumption: 1W( while sending message)
c. LCDshow
d. External power failure alarm
Start-time: less than 1s
e. Alarm response time
Less than 8s ( GSM in normality)
f. The volume of siren
More than 110db
g. Power
Power requirements: AC 220V 50Hz ( optional)
Working power consumption less than 3W
Standby battery DC 8.4V
Standby battery working hours: more than 15 Hours
h. Working conditions
Operating temperature: -20 ~ 60
Humidity: 20% to 95%
i. Weight of alarm host
Net weight: 0.5Kg
Gross weight: 0.75Kg
j. Dimension of alarm host
Dimension: 160mm( Long) × 113mm( Wide) × 38mm( High)
Packaging
1. One Host
2. One Wireless PIR motion sensor
3. One Magnetic door/ window contact
4. Two Remote controllers
5. One Siren
6. One AC Adapter
7. One Manual