GRI MS28A-G Surface Mount Magnasphere Closed Loop, Gray
SKU
MS28A-G
Model No
MS28A-G
$213.24
GRI MS28A-G Surface Mount Magnasphere Closed Loop, Gray is available to buy in increments of 10
Product Highlights
- Higher level of security
- Spherical magnetism
- Resistant to magnetic tamper and defeat
- Hermetically sealed
- Screw down flanges

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The GRI MS28A-G Surface Mount Magnasphere Closed Loop in Gray offers an innovative solution for enhanced security with its advanced spherical magnetism technology. Ideal for installation on steel surfaces, this closed loop switch ensures reliable performance with its hermetically sealed design and built-in end-of-line (E.O.L.) resistors. Additionally, a variety of mounting options and colors make this product versatile and adaptable to diverse security applications.
GRI MS28A-G Closed Loop Features
- Higher level of security: This switch provides enhanced protection against unauthorized access, ensuring peace of mind.
- Spherical magnetism: Utilizes patented technology for reliable activation, reducing false alarms.
- Resistant to magnetic tamper and defeat: Designed to withstand interference, ensuring consistent performance.
- Hermetically sealed: Protects internal components from moisture and contaminants, extending lifespan.
- Screw down flanges: Facilitates secure installation, minimizing the risk of displacement.
- Concealed terminals on MS28: Enhances aesthetics and prevents tampering with exposed connections.
- Built-in E.O.L. Resisters and Diodes upon request: Customizable features for comprehensive integration into existing systems.
- Switches and magnets available separately: Offers flexibility in procurement and replacement needs.
- Colors: white, brown or gray: A variety of color options to match different environments.
- Private labeling upon request: Ideal for distributors and businesses wanting branding options.
- Standard Gap 3/8”: Reliable function with minimal installation gap requirements.
GRI MS28A-G Detailed Specifications
| Feature | Details |
| Product Type | Surface Mount Magnasphere Closed Loop |
| Model | MS28A-G |
| Color | Gray (also available in white and brown) |
| Installation Surface | Steel |
| Standard Gap | 1/2” |
| Seal Type | Hermetically sealed |
| Mounting Option | Screw down flanges |
| Conductor Length | 2 feet |
| Custom Options | Private labeling and E.O.L. resistors |
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