GSM/ GPRS, the double frequency mobile communication network, can convey the color images, SMS and the sound.there is the spare power supply to make sure the transmission whit no....

GSM/ GPRS, the double frequency mobile communication network, can convey the color images, SMS and the sound.
there is the spare power supply to make sure the transmission whit no....

GSM/ GPRS, the double frequency mobile communication network, can convey the color images, SMS and the sound.
there is the spare power supply to make sure the transmission whit no....

GSM/ GPRS, the three frequency mobile communication network, can convey the color images, SMS and the sound.
no need to worry about the wires cut and convenient to install.
the....

The GSM ALARM uses different technologies like GSM/ GPRS, the three frequency mobile communication network. And it is used widely not only at home but in shops or even the offices....

this GSM alarm system is an advanced version with fuction of taking photo and sending picture to your mobile phone .it will call 5 of your approved telephone numbers, friends, ....