GRI 28C-B Commercial Surface Mount Switch Set, 1" and 5/8" on Steel Open / Closed, SPDT, Brown
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
- Reliable commercial door monitoring that reduces false alarms and supports continuous security and surveillance
- Adjustable gap options (standard 1", wide 1.5", extra wide 2") to fit varied door clearances and mounting needs
- Steel compensation (5/8" on steel standard gap) for accurate performance on metal frames and reduced nuisance trips
- SPDT contact provides flexible wiring for integration with alarm panels, access control and monitoring systems
- Surface-mount, low-profile brown housing blends with commercial interiors and simplifies retrofit installations
- UL-listed construction and lifetime limited warranty for long-term reliability and lower total cost of ownership
Quick Specifications
- Product Model
- 28C-B
- Brand Name
- George Risk Industries
- Manufacturer Part Number
- 28C-B
Explore the details
Product information
28C-B
Overview
Keep commercial doors and entry points monitored with confidence using the George Risk Industries GRI 28C-B commercial surface-mount magnetic contact. Built as a robust magnetic contact for security and surveillance applications, this surface-mount switch set delivers dependable door monitoring and alarm reporting in retail, office, and multi-tenant environments. The GRI 28C-B supports a standard gap of up to 1" (5/8" on steel) with optional wide and extra-wide gap settings for uneven or heavy-duty installations, minimizing installation headaches and false alarms on metal frames. Its SPDT switch offers flexible wiring for compatibility with most alarm panels and access control systems, while the brown low-profile housing provides a discreet, professional appearance for visible installations. George Risk Industries offers pre-wired options and a selection of mounting brackets to speed installation and reduce labor time. UL-listed and backed by a lifetime limited warranty, the 28C-B is engineered for long service life and dependable monitoring of doors, gates and enclosures. Ideal for commercial security, access control and surveillance projects—order the GRI 28C-B for reliable perimeter protection or contact our sales team to specify for your site.
Features
- Reliable commercial door monitoring that reduces false alarms and supports continuous security and surveillance
- Adjustable gap options (standard 1", wide 1.5", extra wide 2") to fit varied door clearances and mounting needs
- Steel compensation (5/8" on steel standard gap) for accurate performance on metal frames and reduced nuisance trips
- SPDT contact provides flexible wiring for integration with alarm panels, access control and monitoring systems
- Surface-mount, low-profile brown housing blends with commercial interiors and simplifies retrofit installations
- UL-listed construction and lifetime limited warranty for long-term reliability and lower total cost of ownership
| General Information | |
|---|---|
| Brand Name | George Risk Industries |
| Manufacturer Part Number | 28C-B |
| Warranty | |
| Limited Warranty | Lifetime |
| Miscellaneous | |
| Country of Origin | US |
| Environmentally Friendly | Yes |
| Environmental Certification | UL |
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Is this right for your project?
Confirm the model, required accessories and delivery needs before ordering.
- SKU:
- 28C-B
- Manufacturer part:
- 28C-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 28C-B Commercial Surface Mount Switch Set, 1" and 5/8" on Steel Open / Closed, SPDT, Brown
28C-B