Magnasphere HSS-L2S-817 Single Alarm Contact with Tamper Circuit, Closed Loop
SKU
HSS-L2S-817
Model No
HSS-L2S-817
$363.00
Product Highlights
- Intrinsically Safe, Simple Apparatus
- Resistant to External and Internal magnetic defeat
- Dual 1/2″ NPT conduit ports provide top or side connection options
- Replacement for existing BMS devices
- No adjustment required for installation

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The HSS-L2S-817 from Magnasphere is a Single Alarm Contact Closed Loop with Tamper Circuit, designed for high security applications such as SCIFs, safes, and vaults. This advanced sensor features embedded EOL resistors, making installation easier and enhancing reliability. Listed to UL634 Level 2 High Security Standard, this product not only offers superior protection but also incorporates labor-saving installation techniques, ensuring it meets the stringent security demands of any facility.
Magnasphere HSS-L2S-817 Key Features
- Intrinsically Safe: Designed as a simple apparatus for secure installations without complicated setups.
- Magnetic Resistance: Resistant to both external and internal magnetic defeat, ensuring reliable security.
- Diverse Connection Options: Dual 1/2” NPT conduit ports provide flexible connection from the top or side.
- Replacement Compatibility: Works as a direct replacement for existing BMS devices, enabling easy upgrades.
- Simple Installation: No adjustments required, reducing installation time significantly.
- Advanced Tamper Detection: Features the industry's most secure removal tamper sensor/circuit for enhanced security.
- Robust Switch Technology: Magnasphere's technology prevents permanent contact welding due to power surges, lightning, or stun guns.
- Variety of Contacts: Available in single (L2S) and dual (L2D) alarm contacts to suit different needs.
- American Made: Crafted with award-winning Magnasphere switch technology ensuring high durability and reliability.
- Control Panel Compatibility: Compatible with control panel models that accept contact inputs for easy integration.
- Built-in EOL Resistors: Options for built-in EOL resistors streamline the installation process.
- Competitive Pricing: Offers a cost-effective security solution without compromising quality.
Magnasphere HSS-L2S-817 Detailed Specifications
| Model | HSS-L2S-817 |
| Type | Single Alarm Contact |
| Operation Mode | Closed Loop with Tamper Circuit |
| Resistor Configuration | 1K ? Series, 1K ? Parallel Embedded EOL Resistors |
| Wiring | 2 Wire |
| Security Listing | UL634 Level 2 High Security |
| Compatibility | Control panels accepting contact inputs |
| Size | Surface Mount |
| Made In | USA |
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