As with outdoor motion sensors, it is important to pay attention to immunity to animals and extraneous movements to prevent false alarms. The wireless motion sensor is mounted in a ready-made interior. ![]() When installing wired sensors, users need to lay them in the interior at the design stage, for laying wires. ![]() Internal motion sensor Room motion sensors are installed in walls, furniture and on the ceiling. Installing an external motion sensor is advisable on the property's facade or the fence. It is worth paying attention to protecting the case from weather conditions - rain and snow. It is essential to choose a motion sensor with protection against dismantling and immunity to animals and extraneous movements. The device is easy to install and can be either wired or wireless. Types of motion sensors by the locationĮxternal motion sensor An outdoor motion sensor allows users to adjust the direction in which the space will be controlled or has a coverage area of 360 degrees. Combined motion sensors are used in burglar alarms. Combined motion sensors Several scanning technologies in one device. The motion sensor will most likely not work if the movement is smooth. The disadvantages of this sensor are short-range, and the device fixes only objects that move quickly. Ultrasonic sensors detect an object in motion, regardless of its temperature and material the operation of the device is not affected by air dust or humidity. The motion sensor captures these changes and is activated. A sound that bounces off an object in motion changes the signal's frequency. Ultrasonic motion detectors Ultrasonic presence sensors emit sound waves with a 20,000 to 60,000 Hz frequency. And if the manufacturer of the infrared sensor does not provide immunity to animals, there is a risk of false alarms. A feature of this type of sensor is setting the scanning angle and detection range independently. Infrared motion sensors IR presence detectors are triggered when infrared radiation is detected at a temperature close to the temperature of the human body. The device's performance does not depend on temperature and weather conditions, and high accuracy helps capture even slow movement. ![]() Most microwave motion detectors have several independent detection zones and are small. Microwave motion sensors detect objects in motion even behind obstacles - glass, doors, plasterboard walls. More details about each of them: Microwave presence sensors The principle of operation of such a detector is the radiation of high-frequency electromagnetic waves by the device and triggering when the signal frequency changes. Types of motion sensors Common types of motion sensors: microwave, infrared, ultrasonic and combined. Motion detectors are used to protect a room or territory, control lighting, and smart homes. How to choose a motion sensor To install a motion sensor, the first step is determining the type of device and its purpose. Intrusion into a protected area is one of its most common types, and break-in and its consequences can be prevented using motion sensors. ![]() Outdoor motion sensor A complete security system should be equipped with devices that signal danger.
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