Magnasphere HSS-L2S-002 Single Alarm Contact With Tamper Circuit, Closed Loop
- Resistant to External and Internal magnetic defeat
- Built-in EOL resistors available
- Unique cross hole mounting feature eliminates need for L and Z brackets on most installations
- Retro-fit for existing BMS devices
- No adjustment required for installation

The HSS-L2S-002 from Magnasphere is a single alarm contact with tamper circuit, closed loop. 1K ? series, 1K ? parallel embedded EOL resistors on closed loop alarm circuit and tamper circuit. MAGNASPHERE has created the L2 Series HSS “High Security Sensor” – The Next Generation of sensors for high security standards for SCIFs, safes and vaults, and all other high level secure applications. The acclaimed MAGNASPHERE HSS devices are listed to UL634 Level 2 High Security Standard. In addition to their vastly increased security they offer many labor saving installation features, including embedded EOL resistors. The L2S single alarm contacts are surface mount.
One of the unique features of the HSS L2S is the ability to add embedded EOL resistors and related electronics to offer the ultimate in security. We offer a variety of embedded EOL resistor configurations and values. In addition to the surface mount models, MAGNASPHERE has expanded its L2 series HSS product line to include the revolutionary L2C series for installations where concealed sensors are desired for both security and aesthetics.
UL634 is the standard for all switches and connectors used in alarm systems. The 9th edition (2007) eliminated the previous BMS high security categories. Learn about the difference between High Security Levels 1 & 2. The ICD 705, sets the standards for SCIF intrusion detection systems for the government Intelligence Community, and requires the use of HSS Level 2 devices.
Magnasphere HSS-L2S-002 Alarm Contact Features
- Resistant to External and Internal magnetic defeat: Ensures heightened security by preventing unauthorized access through magnetic means.
- Built-in EOL resistors available: Reduces installation complexity and provides optimal functionality without additional components.
- Unique cross hole mounting feature: Eliminates the need for L and Z brackets on most installations, streamlining the setup process.
- Retro-fit for existing BMS devices: Facilitates easy upgrades to already installed systems without major overhauls.
- No adjustment required for installation: Allows for quick and efficient installation, reducing labor time.
- Industry’s most secure removal tamper sensor/circuit: Protects against tampering, ensuring consistent security even when devices are disconnected.
- Magnasphere switch technology: Resists permanent contact welding from lightning, power surges, and stun guns, enhancing reliability.
- Single and dual alarm contacts available: Provides flexibility to cater to various security needs and application preferences.
- American made: Crafted using award-winning Magnasphere switch technology, ensuring quality and durability.
- Compatible with control panel models: Works seamlessly with systems that accept contact inputs, broadening usability.
- Competitively priced: Offers exceptional value without compromising on security features.
- Intrinsically Safe, Simple Apparatus: Designed for safe, straightforward installation and operation.
Magnasphere HSS-L2S-002 Detailed Specifications
| Feature | Detail |
| Model | HSS-L2S-002 |
| Type | Single Alarm Contact with Tamper Circuit |
| Resistor Value | 1K ? (series and parallel) |
| Mounting Type | Surface Mount |
| Security Standard | UL634 Level 2 |
| Compatibility | Works with control panel models accepting contact inputs |
| Country of Manufacture | United States |
| Weight | Lightweight for easy installation |
| Sensor Technology | Magnasphere switch technology |
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