La Air

A great home should be comfortable and at the same time, it must provide a safety feeling for us to stay. Therefore, having a good home security alarm system is an essential part of building a complete home. The system should be able to deterrent thieves or at least slowing them down and minimize the possibility for them to commit their offensive act in the event of a burglary.

Possibly, sensor is the most important component in the whole home alarm system. These sensors come in a variety of detection types. They will observe the environment and send a notification back to the main control panel when changes in the environment are detected. In order to let you understand the function of each sensor, the following is a brief explanation of different types of sensor devices available for your home security system:

Passive Infrared Sensor (PIR Sensor)
Since all objects emit radiation, PIR sensor is an electronic device made to detect these radiations. Typically, they are able to sense the changes of temperature in one place, for instance a wall. And, when a human body passes by the wall, the alarm will be triggered due to the temperature difference. While the word ‘passive’ in this device simply means it does not emit any infrared ray, but just to receive the incoming radiation.

Photoelectric Sensor (Photoeye)
This device works similarly to PIR sensors, but instead of a single part that receives the radiation, this device comes in two different parts. Photoeye is able to discover the distance, presence or absence of an object with its transmitter and receiver. And, because it has three different functions, these parts will need to have different types of arrangement for each operation to perform properly.

Microwave Radiometer (MWR)
A device that produces radio waves to measure its wavelength’s feedback. It is suitable to be used in rooms with air conditioner or air heater because these waves will not be affected by its windy condition. MWR is a precise device where it can detect gas leakage, radon and excess moisture. However, these waves are very powerful and will sense movement beyond your desire boundary. Hence, strict consultation and proper assembling is required to be done by professional before using this system.

Ultrasonic Sensor (Transceiver)
Very much alike Microwave Radiometer, Ultrasonic sensor uses sound waves and retrieves its echoes as the feedback. Unfortunately, the sensor will be affected by strong winds, thus careful assessment is necessary. And, it is named as a transceiver because it can both send and receive signals.

Glass Break Sensor
Yet another sound detector, but this is quite different from the rest. These sensors have been finely altered to recognize sounds of hitting an object as well as the sounds of glass breakage. Usually, one of these devices is able to cover a relatively large area.

Pressure Sensor
A simple device where you can install it under most types of flooring or right below your carpet. Alarm will be triggered if a person’s weight runs over it when the system is armed. It is an added safety device for window and door entrances.

All these devices as well as detectors are a good investment in keeping your home safe. Most of them were also used in an ADT security system and by many trusted home security companies as well. If you are not sure about installing an ADT alarm security system in your house, you can always call the professionals. They will give you a walkthrough and some suggestions that will suit your needs.