Practical-home-security-guide.com

The best alternative to the conventional security camera is the motion triggered security camera. Unlike normal security cameras, motion activated cameras do not save the video images 24 hours in secondary devices. This turns out to be an advantage where you can save disk storage up to 90 percent when compared to normal security cameras. [...]

Responds are the types of actions that a security system can take when the alarm is triggered. A normal system would include a siren and it’s designed to produce loud noise to let you and your neighbors know that there has been a break-in and also to let the intruder know that they have been [...]

Like a radar system, the microwave motion detector emits energy and analyzes it by measuring the different frequencies of the returning microwaves as they bounce off the moving object in question. It operates at frequencies of 10 Mhz. If an object is moving in the sensor’s field, the returning microwave will be at a different [...]

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 [...]