Wired Door Alarm Sensors

Wired door alarm sensors make a great addition to any hardwired alarm system. These devices will let your security panel know whenever a door or window is opened. Your system will then respond based on the programming settings for the corresponding zone. Buy wired door alarm sensors from Alarm Grid.
Honeywell PAL-T-WH - Surface Mount Door Contact and Window Contact
Honeywell PAL-T
Surface Mount Door Contact and Window Contact
List Price: $6.00
Our Price: $4.99
Honeywell 947-75T - 3/4” Diameter Steel Door Recessed Contact with Terminals
Honeywell 947-75T
3/4” Diameter Steel Door Recessed Contact with Terminals
List Price: $10.00
Our Price: $7.99
Honeywell 958 - Overhead Door Magnetic Contact
Honeywell 958
Overhead Door Magnetic Contact
List Price: $20.00
Our Price: $17.99
Honeywell 7939-2 - Surface Mount Door Contact and Window Contact
Honeywell 7939-2
Surface Mount Door Contact and Window Contact
List Price: $16.00
Our Price: $11.99
Honeywell 5816 - Wireless Door Sensor and Window Sensor
Honeywell 5816
Wireless Door Sensor and Window Sensor
List Price: $40.00
Our Price: $26.99
Honeywell 940 - Magnetic Door Contact and Window Contact (N)
Honeywell 940
Magnetic Door Contact and Window Contact
List Price: $5.00
Our Price: $4.99
Honeywell 959 - XTP Overhead Door Contact
Honeywell 959
XTP Overhead Door Contact
List Price: $37.00
Our Price: $24.99
Honeywell 958-2 - Overhead Door Contact
Honeywell 958-2
Overhead Door Contact
List Price: $62.00
Our Price: $31.99
Honeywell 947-75 - 3/4” Diameter Steel Door Recessed Contact with Leads
Honeywell 947-75
3/4” Diameter Steel Door Recessed Contact with Leads
List Price: $7.00
Our Price: $7.99
Taxons
Qolsys QR0030-840
Replacement Magnet for Qolsys Door/Window Contacts
List Price:
Our Price: $2.99
DSC AMP-704 - 4 Zone Addressable Door/Window Contact Module
DSC AMP-704
4 Zone Addressable Door/Window Contact Module
List Price:
Our Price: $39.99
DSC AMP-700 - Addressable Door/Window Contact
DSC AMP-700
Addressable Door/Window Contact
List Price:
Our Price: $16.99

Door sensors are perhaps the most popular sensors used with alarm systems. One of the most important aspects of keeping your home or business secure is knowing when a door or window is opened. You would be surprised at how many intruders walk right through the front door. Although a door sensor won't physically stop an intruder from entering your premises, it will ensure that you and/or the appropriate authorities are notified as soon as possible.

The way that door sensors work is with a sensor and a magnet. The sensor is generally installed on the door frame, while the magnet is placed on the actual door. For best results, the sensor should be within a half-inch of the magnet when the door is closed. Opening the door will cause the magnet to separate from the sensor. The sensor will then know to alert the system when this happens. How the system responds will depend on the programming settings for that zone. Additionally, most hardwired door sensors can alternatively be used as window sensors if desired.

The typical wired door sensor will connect with a panel through a 2-wire connection. In this case. both wires are actually used for data transmission. Since door contacts are purely mechanical devices, the do not require any power draw from the panel. This makes them some of the simplest and most straightforward sensors used with a security system. Their overall simplicity also makes them extremely affordable. Using hardwired contacts can help keep costs down if you don't mind running wires.

Speaking of running wires, this is something to consider if you are thinking about using wired door alarm sensors. Running wires from the panel to each individual sensor can be a difficult task for some DIY users. However, many DIY users are up to the task and ready to take on the challenge. And running wires is certainly not as hard as you might believe. But if you don't feel comfortable running wires, then you might want to consider using wireless sensors if possible. Or you can always as a trained electrician to run wires for you.

A great thing about hardwired door sensors is that they are usually compatible with any hardwired alarm system. You do not have to consider compatibility when using these sensors. For example, a hardwired DSC Door Sensor will work just fine with a hardwired Honeywell VISTA Alarm System. All the door sensors use the same connections, which gives them excellent compatibility.

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