GRI 20F-12-B 3/8" Flanged Recessed Switch Set, Standard Gap 1/2"+, Closed Loop
Special Order: typically 2–6 weeks
Ships directly from the manufacturer. This is an estimated lead time, not a guaranteed delivery date.
Availability can change and lead times may be longer. If your project has a deadline, check with us before ordering.
A member of our team will check with the manufacturer and personally reply by email.
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Key Features
- Concealed, screw-flanged recessed design delivers secure, tamper-resistant mounting for perimeter security and access control
- Closed-loop magnetic contact with 1/2"+ standard gap ensures reliable monitoring for doors and windows
- Hermetically sealed, plated contacts resist sticking or freezing for dependable performance in surveillance installations
- Versatile for flush or oversized holes—ideal for hollow aluminum frames and retrofit applications; mounting hardware included
- US-made with lifetime limited warranty and optional E.O.L. resistors/diodes or supervisory loops for integration with alarm panels
Quick Specifications
- Product Model
- 20F-12-B
- Brand Name
- George Risk Industries
- Manufacturer Part Number
- 20F-12-B
Explore the details
Product information
20F-12-B
Overview
Keep perimeter entry points discreetly protected without sacrificing reliability. The George Risk Industries GRI 20F-12-B flanged recessed magnetic contact is a flush-mount switch set engineered for security and surveillance professionals who need a concealed yet screw-secure solution. Designed with a 3/8" flanged recessed profile and a standard 1/2"+ gap, this closed-loop magnetic contact provides consistent monitoring of doors and windows even in hollow aluminum frames or slightly oversized holes. Hermetically sealed and plated to resist sticking or freezing, the switch maintains dependable operation in varied environments, reducing false alarms and maintenance calls. Installers appreciate the included mounting hardware and longer lead/cable options, while integrators value optional built-in E.O.L. resistors, diodes, and supervisory loops for alarm panel compatibility. Backed by US manufacture and a lifetime limited warranty, the GRI 20F-12-B is tailored for access control, intrusion detection, and surveillance projects where concealment, durability, and reliable monitoring matter. Select this George Risk recessed switch to streamline installations and strengthen your perimeter protection—order now for retrofit or new-build security systems.
Features
- Concealed, screw-flanged recessed design delivers secure, tamper-resistant mounting for perimeter security and access control
- Closed-loop magnetic contact with 1/2"+ standard gap ensures reliable monitoring for doors and windows
- Hermetically sealed, plated contacts resist sticking or freezing for dependable performance in surveillance installations
- Versatile for flush or oversized holes—ideal for hollow aluminum frames and retrofit applications; mounting hardware included
- US-made with lifetime limited warranty and optional E.O.L. resistors/diodes or supervisory loops for integration with alarm panels
| General Information | |
|---|---|
| Brand Name | George Risk Industries |
| Manufacturer Part Number | 20F-12-B |
| Physical Characteristics | |
| Color | Brown |
| Warranty | |
| Limited Warranty | Lifetime Warranty |
| Miscellaneous | |
| Features | Built-in E.O.L. Resistors and Diodes upon request, Colors- white, brown, gray, black, Hermetically sealed, Longer leads, zip cord or jacketed cable upon request, Plated contacts resist sticking or freezing, Recessed magnetic contact, Round or Oval screw down flange, Supervisory Loops available upon request, Switches and Magnets available separately |
| Country of Origin | US |
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Is this right for your project?
Confirm the model, required accessories and delivery needs before ordering.
- SKU:
- 20F-12-B
- Manufacturer part:
- 20F-12-B
How do I confirm compatibility?
Check the specifications and manufacturer documents for your existing system. Send us your model numbers and project requirements if you need help selecting equipment or accessories.
Ask a product specialistWhen will this item ship?
Availability is shown above. Special-order items and project quantities may need additional lead time. Contact us to confirm a delivery date before scheduling installation.
Shipping, freight and delivery detailsWhat should I know about returns?
Returns require an approved RMA. Consult the linked return policy for deadlines and eligibility. For standard non-defective returns, eligible factory-sealed items carry a 15% restocking fee and customer-paid return shipping; open-box and used items are refused. Defective and DOA claims follow the policy's separate terms. Special orders and other exclusions are final sale.
Read return eligibility and exclusionsGRI 20F-12-B 3/8" Flanged Recessed Switch Set, Standard Gap 1/2"+, Closed Loop
20F-12-B