Resideo Surface Mount Magnetic Contact with Terminals 7939WG-BR, 1-1/4" Gap, SPST, Brown
Close the gap, hear the break.
A wired surface mount magnetic contact for doors, windows and overhead doors. It reports an opening to your alarm panel's zone, and the cover hides the EOL resistor.

A zone is only as good as its sensors.
Wired intrusion zones on alarm panels rely on contacts that fit the opening and stay put. This one mounts with screws or double sided adhesive strips.
Built for wired alarm zones
The 7939WG-BR covers the basics of a wired door and window contact in a Brown finish.
Standard 1-1/4" gap
The standard gap is 1-1/4" (32mm), so check it against your door or window before ordering.

Standard gap (32mm)
The gap between contact and magnet when the door or window is closed.
Series wiring on one zone
Install many contacts wired in series on one loop or zone of your wired security.
Concealed EOL resistor
The cover conceals the end of line resistor (EOL) for a cleaner look at the opening.
Screws or adhesive
Mount the contact with screws or double sided adhesive strips, with spacers, covers and screws included.
Everything you need to know.
| Brand | Resideo |
| Model | 7939WG-BR |
| Color | Brown |
| Connectivity Technology | Wired |
| Contact Type | SPST (Single Pole Single Throw) |
| Contact Form | Form A |
| Mount Type | Surface Mount |
| Length | 2.5" |
| Width | 0.5" |
| Height | 0.5" |
| Input Voltage | 30V DC |
| Input Current | 300mA |
Resideo Surface Mount Magnetic Contact with Terminals 7939WG-BR, 1-1/4" Gap, SPST, Brown
The Resideo 7939WG-BR is a Surface Mount Magnetic Contact with Terminals from Resideo. It is a door & window contact intended for doors, windows and overhead doors, and suits installers, integrators and property owners who want a dependable Resideo part with the specifications listed below.
Key Features
- Standard gap 1-1/4" (32mm)
- Spaces, covers and screws included
- Cover conceals end of line resistor (EOL)
- Installed with many contacts wired in series on one loop or zone of your wired security
- Mount the contact with screws or double sided adhesive strips
- Choose color of our own selection
Specifications
- Brand: Resideo
- Model: 7939WG-BR
- Product Model: 7939WG
- Product Type: Magnetic Contact
- Connectivity Technology: Wired
- Contact Configuration: N.C.
- Contact Form: Form A
- Mounting Type: Surface Mount
- Recommended Use: Door, Window
- Standard Gap: 1.26"
- Application/Usage: Security System Sensors
- Color: Brown
- Height: 0.5 in
- Width: 0.5 in
- Input Current: 300 mA
- Input Current (A): 0.3
- Input Voltage: 30V DC
- Power Source: DC Adapter
- Installation Type: Hybrid
- Length: 2.5 in
- Certifications & Standards: UL
- Features: Ideal for residential or commercial use
- Package Contents: 7939WG Magnetic Contact Spacers Covers Screws
Typical Uses
- Doors, windows and overhead doors
- Wired intrusion zones on alarm panels
Check gap rating, mounting style and wiring against your door or window before ordering.
Need help with compatibility?
Looking for a manufacturer part number, compatible replacement, or quantity order? Contact Raztechs for sourcing and quote support.

Resideo 7939WG-BR, ready to order.
- 7939WG Magnetic Contact
- Spacers
- Covers
- Screws
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