How do I know what the best location is for installing a motion sensor?

Motion sensors are an integral part of any effective security system, with passive infrared (PIR) sensors being most commonly utilised for motion detection. When choosing a location for installation, the sensors need to be placed in an optimum location for full functionality, and this is where the question of “How do I choose the right location for installing a motion detector?” comes into play. 

Exterior sensor lights

Let’s start by answering “How do I choose the right location for installing a motion detector“?, with the most common form of DIY security, exterior sensor lights. These typically come as a single unit mounted to a wall or posted to light an area automatically when a vehicle or person approaches. They are a great deterrent to a would-be intruder but also extremely useful for safe entry or exit when coming home at night.

Maximise the field of view

If you place your sensor 6 to 8 feet above ground level, it will have the maximum field of vision. However, if there are any structures or plants that may obstruct the sensor, it will not work as effectively. When mounting your exterior sensor, you should ensure there is a clear field of view for it to pick up any movement in the area.

False triggers

Consider your surroundings when mounting your sensors. For example, do you have hanging baskets or wind chimes that will trigger the light due to swinging in a breeze? Of course, some false triggers are unavoidable, such as birds or other wildlife. However, ensuring that any moveable objects you have control over are not in the field of vision will minimise those false triggers significantly.

Interior sensor lights

Another popular type of motion sensor is an interior light sensor. They are commonly installed just above the skirting boards in hallways and stairs to light up when someone walks by. If you have pets, you may want to install the sensor a little higher to avoid false triggers. Entry halls are another area that is very handy for a sensor light to be installed. Be careful not to have the sensor pointing toward another room or window where exterior movement may trigger the light. In entry halls, the standard 6 to 8 feet above ground height is ideal.

Intruder alarm sensors

For intruder alarms, sensors are typically located in the corner of the room, 6 to 8 feet above the floor. Placing your sensor in the corner of the room allows for the widest field of vision to cover the broadest area. Common considerations for the question of “How do I choose the right location for installing a motion detector?” in these instances include ensuring that the placement of bulky furniture, wall art or other decorations is not impeding the sensor’s field of view.

We hope this information has been useful. If you have any concerns at all, it is recommended to enlist the services of a proven professional such as Smart Security to guarantee your sensors are placed for maximum efficiency.