How to choose wireless gsm security alarm system for home
Home security system is the best modern electronic system, which can effectively protect your home and keep out the unwanted people and intruders. A good home alarm system can trigger the alarm, if it detects the abnormal event, wherever you are in upstairs asleep or you are out for work. Now you can find good quality security alarm system features DIY function and allow user self-install the alarm for their premises, also the price is affordable. Currently there are many different types alarm system in the market, include hard wired alarm, wireless alarm, GSM alarm and monitored alarm. Different types of alarm systems with its own advantages and disadvantages. We shall discuss this in below article.
Basic ideas for home security systems
A fully inspection for your house is very important before initial purchasing the alarm system. Try to get a full plan to secure your house, and find out the vulnerable entry point where people easy to access and entry into your home. Secure these entry points or detect the intruder with various methods and can use different types of intrusion sensor. The most widely used intrusion detection sensors are magnetic contacts and passive infrared detectors (PIR).
Magnetic contacts are the reliable sensor for detection windows and doors. It consist of two parts, one is magnetic, the other is transmitter. When intruder open the door/window, two parts will separate, and generate an alarm signal send to alarm panel.
Passive Infrared detectors (PIR) are sensitive to changes of infrared energy that generated by human movement in a specific detection area. Unlike beam sensor, passive infrared detectors do not emit any infrared light. The normal passive infrared detectors may generate the false alarms, which are caused by pet, animal even the environment change. In order to solve this flaw, some manufacturers offer passive infrared detectors with pet immune feature, these kind of sensors with professional name pet-immune motion sensor. If you want to reduce the false alarm, the other option is to use Dual-tech motion sensor. Dual-tech motion sensor combination with two detection sensors and two different detection technology (Microwave plus PIR) to reduce false alarm.
Fire detection and prevention is crucial for every residential and commercial building. Most of alarm systems with fire zones and allow user to add with extra fire detection sensors. The most common fire detection sensors are smoke sensor and heat sensor.
Smoke sensors are detecting the smoke density. When it reachs to trigger point, it will make warning buzz, at same time send alarm signal to alarm panel. Smoke sensor are typically wall mounted on ceiling, make sure install one in each of your rooms.
Some times, you can add more sensors like panic button and medical help button, automation light control device to achieve some extra functions. It do increase extra money for the security solution, but it provides more functions.
Self-monitoring alarm system or monitored alarm system?
Self-monitoring alarm system with advantage of self-installation, the alarm goes to home owner directly, and user doesn't need to sign monitoring contract, also without paying thousand dollars on alarm equipment and installation. Monitored alarm system send the alarm signal to central monitoring station, where there are professional operator to handle the alarm. Comparing between self-monitoring alarm and monitored alarm system.
Hardwired alarm system vs wireless alarm system ?
Wireless alarm system allows DIY, also easy to install and without construction works, nowadays majority of user install wireless alarm systems. Know more difference between hardwired alarm system and wireless alarm system.
Cost of home alarm systems
The cost for a full standard home alarm kit may cost around USD 60 - 250 USD. The price varies at features of alarm system, and the quantity of included sensors. With features like GSM function, the price is more higher. The price for hard wired sensors are very cheap, price for wireless sensors are bit high. If you buy the Chinese manufactured alarm system, then the price is very competitive, like magnetic contact, it costs USD 2.5 - 4.5. For the wireless PIR motion sensor, the price will be USD 7.5 - 12.
Telephone line (PSTN) or GSM alarm system ?
Traditional alarm systems need connect to telephone line, and transmit the alarm signal to the alarm company. The flaw of PSTN transmission is the intruder can cut the telephone line to disable alarm system within 10 seconds. More over, with hard wiring, the alarm system are not easy to move after installation.
The GSM alarm system adopts GSM cellular technology, it transmits the alarm signal via wireless cellular network. It's not only make the alarm system more secure and reliable, but also make the system portable. More over, some GSM alarm systems with advanced remotely control function, it allow user to access alarm in anywhere. By the way, GSM alarm systems need run with a valid SIM card, also the installation place must cover with GSM signal.