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Motion Sensor Area Coverage

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Motion Sensors for your home security system are an integral part of your protection. It is important to have them properly installed and adjusted. Your door and window sensors are your primary perimeter protection but motion detectors provide a second line of defense. These devices will detect an intruder that has entered your home.

Motion Sensors Installation Height

Sensors should be located at a height of 6-8 feet. This height gives you the maximum range of protection. You can adjust the angle of the motion sensor to change the coverage of the detector. In the case of a home with pets this can help to eliminate false alarms by keeping the area of coverage isolated.

Motion Sensor Area Coverage

You can change the angle of the lens for the sensor and achieve a different area of coverage. There are locations where you may want to narrow the area of coverage and this can be achieved by changing the angle of the detector. Some detectors come with inserts that can be used to block off parts of the lens where you do not want motion to be detected. The typical degree of coverage is 100 degrees. By mounting the motion sensor in a corner you will be able to always cover a full 90 degrees. The best way to maximize the coverage is by turning the motion sensor on and temporarily mounting the detector and testing the coverage. When you have found the desired location you can permanently mount the sensor.

Motion Sensor Sensitivity Adjustment

Your motion sensor will have a sensitivity adjustment. This varies depending on the type of motion detector that you own. There can be an adjustment that is a small screw inside the detector that you turn for more or less sensitivity. There will be a + sign for more sensitivity. Turning the screw in this direction will make the sensor more sensitive. Make small adjustments and wait a few minutes after the adjustment for the sensor to stabilize. Then you can test the sensor after the adjustment. Some motion sensors will have a switch for low and high sensitivity.

Wireless Motion Sensors

These types of sensors do not require any wire in order to connect them to the control panel. This is a huge advantage in most cases. Be aware that the sensitivity to motion is not as quick as a wired sensor. When you are initially testing the sensor there is a short delay in detecting motion and when the light comes on. This does not affect the ability to detect an intruder.

Wireless Motion Sensor Batteries

These sensors require batteries in order to operate so they do not typically light up when they see motion. This helps to prolong detector batteries. A wired sensor has an option to have the light go on whenever motion is detected. It is best to have the light go on as this is just one more additional deterrent from getting burglarized.

Compatibility of Motion Sensors

Motion sensors come in a wide variety of shapes and sizes and each manufacturer will offer several different types. The rule of thumb is that if the sensor is a wired type then any motion sensor will work with any control panel. Of course each manufacturer specifically recommends their brand but all wired sensors will work with any control panel. This is not the case with a wireless system. Although some wireless motion sensors will work with other manufactures you should use the correct brand of detector with the appropriate control panel.

Testing Your Motion Sensor

Your motion sensor should be tested during the initial installation and monthly thereafter. If your system is monitored then make sure that you call and put the system in test before initiating any alarms. Once you have done this you should arm the system and proceed to trigger all of your alarm points. This means walk by all of your motion sensors and open every window and door that is connected to the alarm system. When you are sure that you have triggered all of the alarm zones you can shut off the alarm but do not reset the system until you verify that all zones have been triggered. If you are missing a zone then rearm the system and trip that zone. Once you are sure that all zones have been tripped you should call your alarm monitoring company and confirm the zone alarms that they received.

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