DSC EV-DW4975 Frequently Asked Questions

What Are Door Contacts?
Sensors that are used to monitor whether a door is opened or closed are often called door contacts. Learn about door contacts and how they are used with alarm systems.
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What Is the Difference Between Slim Line and Regular Alarm Sensors?
A sensor that is considered "slim line" is thinner than a regular alarm sensor. This makes slim line sensors better for applications with limited space. Learn about alarm sensors.
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