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Ultrasonic sensors are a type of motion sensors. It uses frequencies around 30khz. These sounds are inaudible to humans but are audible to dogs and they may find them annoying. Sound waves were emitted from a sensor and the resulting reflected sounds were analyzed to detect changes. Ultrasonic sensors engage when they detect a change [...]

All smoke detectors consist of two basic parts: a sensor to sense the smoke and a very loud electronic horn to wake people up. The two most common types of smoke detectors used today are the photoelectric detectors and ionization detectors. Photoelectric smoke detectors therefore use light in a different way. Inside the smoke detector [...]

Magnetic sensors are two-part devices used to safeguard windows and doors. One part of the contact is a switch installed in the window or door jam; the other contains a magnet and is placed in the window or door itself. Any noticeable shift in contact with the switch results in an alarm. These can be [...]

Glass break sensors or also known as acoustical sensors are a perimeter device that uses sound to catch burglars trying to break through glass to get into your home. This type of sensors uses an omni directional microphone that hears the sound of breaking glass. The detector mounts in a wall or ceiling and listens [...]

Motion detection systems detect movement in areas covered by the security sensors. Some motion detection systems make use of radio wave by transmitting high frequency radio wave signals into the secure area of a room or hallway and then listen for echoes. By analyzing the reflected signal, a change or disturbance in the reflected signal [...]

Sensors are used to check for disturbance such as movement and heat change in an otherwise “quiet” environment. When there is a change in the environment, the sensor is triggered causing it to send a signal to the control panel. Sensors are essentially magnetic switches that trigger the alarm whenever a door or window is [...]

A keypad is connected to a control panel and is used to activate or deactivate the system by typing in the code number for the alarm. The control panel receives information from the keypad and sensors and decides when to sound the sirens or report to the central monitoring station. The display on your keypad [...]

The control panel is the central component of a security system. It is the home to the central processing unit, the brain of the system. This is the one place that you should never cut corners. You are better off spending additional money now for a control that will be capable of performing any function [...]

Basic setup of a security system consists of a low-voltage electrical circuit connected to sensors. Sensors are installed on entry door or window to detect movement of doors and windows. For an alarm to be triggered, electricity has to be turned on or off by opening or closing part of the circuit. Opening of door [...]

There is a wide variety of home security system manufacturer providing different types of security components. With advancement in technology, new components are increasingly being incorporated into security system by manufacturers to gain edge over the competitors. New technology such as wireless sensors has recently become very popular as it provides ease of installation and [...]