GRI · GR1840

GRI GR1840 Oval Channel Magnet with Recessed Switch

Oval channel magnet with integrated recessed switch for door status feedback

• Oval channel magnet with built-in recessed reed switch in one unit
• Single-component install - no separate magnetic contact wiring
• Lifetime US-made warranty - recessed mount for clean appearance

GRI · MC-25

GRI MC-25 Window Channel Magnet Series

SDC · MC-4

SDC MC-4 SPDT Concealed Magnetic Door Switch

Concealed magnetic door switch, 30VDC SPDT for access control

• SPDT contacts provide both NO and NC outputs, eliminating external relay logic.
• 30VDC rating integrates directly with standard EM lock and strike control circuits.
• Concealed frame-mount design leaves no exposed hardware, resisting tampering.

GRI · GI-29AW

GRI GI-29AW Magnetic Door Contact

When you're spec'ing entry points for intrusion systems where exposed wiring isn't an option and surface-mount aesthetics matter, you need a reliable

• Wide-gap surface-mount magnetic door and window contact
• Normally-closed (NC) hardwired output for fail-safe loop monitoring
• Compact white housing matches residential and office trim

GRI · GI-28AW

GRI GI-28AW Magnetic Door Contact