What is GSM alarm system? How does it work? How exactly is it different from general fixed phone alarms? Is it safe enough? I’m sure you would have these questions in your mind when you heard GSM alarm system at the first time.
GSM alarm system is an alarm system that operating through GSM (global system for mobile communications) network; not requiring a telephone line. Simply insert a SIM card and push the battery switch to ON, it will work by the mobile network. When the system detect intrusion, fire, or any other emergency, the sensors (eg. door sensor) or accessories (eg. panic button) will trigger the alarm, and the GSM alarm will immediately auto dial one of five numbers which is pre-stored in the alarm, or send a short message. The alarm will phone each number until a response is issued to stop the alarm.
The main advantage of gsm alarm over the general fixed phone alarm is that the owner can always obtain information about the current state of the place protected, even when he is in another city or country, by calling or sending SMS query to the number of SIM card. Furthermore, in the case of burglar entering the premises and cutting the telephone line, the GSM alarm would not be affected and still work as it does not require the use of a fixed phone line. So this security alarm is ideal for the place where no fixed phone line or hard to get one. It is easy to install ans use, even can be handled by a person not having any knowledge of security system.