Honeywell Home 7939-2WH Surface Mount Contact, 1" Gap, SPDT, White

The Honeywell Home 7939-2WH is a white, wired surface-mount magnetic contact with a 1″ standard gap. It's used on doors and windows to report open and closed status to a security system. It suits residential alarm installs, and the cover that hides the end-of-line resistor keeps the finished job tidy.

Key features

• The cover conceals the end-of-line (EOL) resistor, so the wiring stays out of sight.
• It uses a Form C (SPDT) reed switch.
• The contact is rated 100 mA at 28 VDC.
• Spacers are included for optional flush mounting.
• Covers and screws are included.

Specifications

Brand: Honeywell Home

Model: 7939-2WH

Product name: 7939-2 Magnetic Contact

Product type: Surface-mount magnetic contact

Color: White

Mount type: Surface mount

Connectivity: Wired

Contact type: SPDT (Form C)

Switch type: Form C (SPDT) reed

Contact rating: 100 mA @ 28 VDC

Power source: DC power

Standard gap: 1″ (25 mm)

Length: 2.10″

Minimum operating temperature: -40°F

Installation type: Residential

Application: Security system sensors

Country of origin: Mexico

Package contents: 7939-2 magnetic contact, spacers, covers, screws

Installation notes

Mount the contact on the fixed frame and the magnet on the moving door or window. Keep them aligned and within the rated gap when closed. Use the included spacers if you want a flush mount, and terminate the EOL resistor before snapping on the cover. Test the zone for a clean open and close before you finish the job.