GRI 129A 1/2" Miniature Surface Mount Switch Set, Standard Gap, Closed Loop, 10W, Reed Fom, 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
- Low-profile, snap-on cover for discreet, aesthetic door and window security
- Reliable closed-loop (Form A) reed switch ensures consistent monitoring with a 1/2" standard gap
- Surface-mount design with knockout points and screw terminals for fast, flexible installation
- Tamper-proof housing with UL/ULC approval and lifetime warranty for long-term system confidence
- Ideal for residential and light-commercial alarm, surveillance and access monitoring applications
Quick Specifications
- Product Model
- 129A-B
- Brand Name
- George Risk Industries
- Product Name
- 129A-B Magnetic Contact
- Product Type
- Magnetic Contact
Frequently Bought Together
GRI 129A 1/2" Miniature Surface Mount Switch Set, Standard Gap, Closed Loop, 10W, Reed Fom, Brown
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Product information
129A-B
Overview
Protect doors and windows without compromising aesthetics — the George Risk Industries GRI 129A miniature magnetic contact delivers reliable, unobtrusive security for homes and light-commercial sites. This low-profile, surface-mount magnetic contact uses a Form A (closed-loop) reed switch and a 1/2" standard gap to provide dependable monitoring of entry points for alarm panels and surveillance systems. The snap-on cover and brown finish blend into trim and frames, while knockout points and screw terminal wiring let installers choose surface wiring or direct-to-wall routing for a clean finish.
Built with tamper-proof features and UL/ULC approval, the 129A offers the durability and compliance required for professional security installations. Its compact 1/2" x 1/2" x 1-1/2" footprint and lifetime warranty reduce service calls and lifecycle costs, giving integrators and property managers confidence in long-term operation. Compatible with monitored security, access control and CCTV systems, the GRI 129A simplifies integration with standard wired alarm panels. Order the GRI 129A today to secure doors and windows with a discreet, code-listed magnetic contact ideal for security, surveillance and monitoring projects.
Features
- Low-profile, snap-on cover for discreet, aesthetic door and window security
- Reliable closed-loop (Form A) reed switch ensures consistent monitoring with a 1/2" standard gap
- Surface-mount design with knockout points and screw terminals for fast, flexible installation
- Tamper-proof housing with UL/ULC approval and lifetime warranty for long-term system confidence
- Ideal for residential and light-commercial alarm, surveillance and access monitoring applications
| General Information | |
|---|---|
| Brand Name | George Risk Industries |
| Manufacturer | George Risk Industries |
| Product Name | 129A-B Magnetic Contact |
| Product Type | Magnetic Contact |
| Product Model | 129A-B |
| Product Series | 129 |
| Application/Usage | Commercial, Residential |
| Country of Origin | US |
| Manufacturer Part Number | 129A-B |
| Technical Information | |
| Contact Form | Form A |
| Standard Gap | 0.50" |
| Termination Style | Screw Terminal |
| Connectivity Technology | Wired |
| Certifications | |
| Certifications & Standards | UL, ULC |
| Physical Characteristics | |
| Color | Brown |
| Power Description | |
| Power Source | DC Power |
| Product Information | |
| Mount Type | Surface Mount |
| Contact Type | NO (Normally Open) |
| Installation Type | Hybrid (DIY + Professional) |
| Warranty | |
| Limited Warranty | Lifetime |
| Miscellaneous | |
| Features | Tamper Proof |
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Is this right for your project?
Confirm the model, required accessories and delivery needs before ordering.
- SKU:
- 129A-B
- Manufacturer part:
- 129A-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 129A 1/2" Miniature Surface Mount Switch Set, Standard Gap, Closed Loop, 10W, Reed Fom, Brown
129A-B