Dual Tech Motion Detecting Sensors Frequently Asked Questions

Dual Tech Motion vs. Traditional Motion
There are two main types of motions. There are dual-tech motions that use both PIR and microwave, and there are traditional motions that only use PIR. Learn about motion sensors.
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What Is a Dual Action Motion Sensor?
When a motion sensor uses both PIR and microwave technology, it is often referred to as "dual-action" or "dual-tech". Learn about dual action motion sensors and how they work.
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What is a Walk Test?
You should perform a Walk Test after installing a new motion sensor to make sure it responds properly and won't cause false alarms. Learn about Walk Tests and how they work.
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What are Microwave Motion Sensors?
A sensor that uses microwave radar signals to detect the presence of motion is called a microwave motion sensor. Learn more about microwave motion sensors and how they work.
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Do Alarm Motion Sensors Work Through Glass?
Motion sensors detect changes in infrared (IR) energy. This cannot be done through modern glass, so motion sensors do not sense through glass. Learn more about PIR motion sensors.
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Do Motion Detectors Work Through Windows?
Motion sensors are usually unable to detect motion through glass. The infrared energy needed to activate a motion won't easily pass through glass. Learn more about motion sensors.
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Do Motion Sensors Work in the Dark?
Passive infrared motion sensors work by detecting changes in infrared energy. This allows them to work in the dark, Learn more about motion detection sensors and how they work.
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Where Should I Install My Motion Detector?
There are several things you should keep in mind when choosing a location for a motion detector. The ideal location for a motion detector is in the corner of a room and away from any windows. The device should be placed 6 to 8 feet off the ground. Learn more about where to install a motion sensor.
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What Makes a Motion "Dual Tech"?
A "Dual Tech" motion sensor uses both passive infrared (PIR) technology and microwave technology to detect motion. Both the PIR and microwave sensors must activate in order for the device to trigger. This makes them great for reducing false alarms. Learn more about Dual Tech motion sensors.
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How Does a Microwave Motion Detector Work?
A microwave motion detector constantly sends out microwave signals. These signals bounce off of objects to return to the sensor. If no motion is present, then the timing of these signals will be consistent. Motion will disrupt these signals and trigger an alarm. Learn more about these sensors.
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