Honeywell 940 Frequently Asked Questions

What Is the Best Alarm Contact?
There is no single best alarm contact. Many different types of door and window contacts are available, and the best one depends on the needs of the user. There are several questions to ask when looking for an alarm contact so that you can obtain the perfect one. Learn more about alarm contacts.
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What is the Best Wired Door/Window Alarm Contact?
There is not a single "best" hardwired door and window contact. Each type of door and window contact will work better in certain situations and installations than in others. There is usually a perfect hardwired contact for every type of situation. Learn more about wired door and window contacts.
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What is the Best Door/Window Sensor for the VISTA-P Security System?
There are many excellent door and window sensors that work well with a VISTA P-Series security system. Hardwired contacts can be used with no additional add-ons. A wireless contact will require a wireless receiver to be added. Learn more about door and window contacts for a VISTA system.
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What Are the Best Alarm Contacts for Sliding Doors?
When selecting a contact for a sliding door, it is generally wise to choose a thin contact so that it can properly fit on the sliding door. The user will need to decide if they want to use a wireless contact or a wired contact. Learn more about choosing an alarm contact for a sliding door.
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What is the Best Door/Window Sensor for the VISTA 21iP?
The best door and window sensor for a VISTA 21iP depends upon the needs of the end user. The user will need to decide if they want their sensor to be hardwired or wireless. They will also need to choose between recessed and surface-mounted contacts. Learn more about door and window sensors.
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What Do Normally Closed and Normally Open Mean?
"Normal" is the normal state of an opening, such as a door. Normally open/closed refers to the state of a contact connected to a door in its normal position.
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Honeywell Glassbreak vs Window Sensors
Glass break detectors and windows sensors are both used to protect against a break-in through a window, but they work in very differnet ways.
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