GRI MS20RS-12-B Recessed Flanged Magnasphere, 3/8″ Gap Closed Loop, Brown
SKU
MS20RS-12-B
Model No
MS20RS-12-B
$189.24
GRI MS20RS-12-B Recessed Flanged Magnasphere, 3/8″ Gap Closed Loop, Brown is available to buy in increments of 10
Product Highlights
- Higher level of security
- Spherical magnetism
- Resistant to magnetic tamper and defeat
- Hermetically sealed
- Round or oval screw down flange

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The GRI MS20RS-12-B Recessed Flanged Magnasphere is designed for enhanced security and easy installation. Its unique flush mount design allows for a combination of the stability of a screw mount flanged switch and the stealth of a press fit. Ideal for hollow aluminum frames, this device ensures reliable operation even in slightly oversized drilled holes, making it a versatile choice for various applications.
GRI MS20RS-12-B Magnasphere Features
- Higher level of security: Provides robust protection against unauthorized access, enhancing the safety of your property.
- Spherical magnetism: Ensures strong contact between the switch and magnet, reducing the risk of false alarms.
- Resistant to magnetic tamper and defeat: Prevents manipulation by nefarious actors, safeguarding the integrity of the system.
- Hermetically sealed: Offers improved durability in various environmental conditions by protecting internal components from moisture and dust.
- Round or oval screw down flange: Flexible installation options allow for compatibility with different surface types and aesthetics.
- Built-in E.O.L. Resisters and Diodes upon request: Facilitates easier installation by integrating necessary components directly into the device.
- Switches and magnets available separately: Offers the convenience of replacing only the necessary components without needing to replace the entire system.
- Colors: white, brown, gray, black: Aesthetic flexibility to match any decor or installation environment.
- Standard Gap 3/8”: Ensures consistent performance across typical application protocols.
GRI MS20RS-12-B Detailed Specifications
| Feature | Details |
|---|---|
| Type | Recessed Flanged Magnasphere |
| Gap Size | 3/8 inch |
| Flange Style | Round or oval screw down |
| Magnetism | Spherical magnetism for strong contact |
| Tamper Resistance | High resistance against magnetic tampering |
| Sealing | Hermetically sealed |
| Color Options | White, Brown, Gray, Black |
| E.O.L. Resisters and Diodes | Available upon request |
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