
FSH FSS1-S-NC High Security Door Monitoring Sensor – Surface Mount – Non-Conduit – IP67
Key Features
- High security surface mount door monitoring sensor.
- Seven Hall effect sensors detect a unique magnetic footprint.
- Advanced anti-tamper detection and monitoring logic.
- Surface mount version with no conduit hole.
- IP67 rated enclosure for harsh environments.
- Compatible with end of line monitoring modules.
- SCEC approved to Security Level 4 and UL 634 Level 2 listed.
Specifications
- Item Code: FSS1SNC
- Mounting Type: Surface mount, non-conduit
- Operating Voltage: 10V DC to 30V DC
- Current Draw: Less than 10mA
- Alarm Contacts: Normally open and common, 0.25A at 30V
- Tamper Contacts: Normally closed and common, 0.2A at 30V
- Door Gap: 1.5mm to 7mm vertical gap; up to 15mm movement for alarm
- Sensors: Seven Hall effect sensors
- Magnet Array: Up to eight magnets for unique magnetic footprint
- Ingress Protection: IP67
- Approvals: SCEC Security Level 4; UL 634 Level 2; RMC compliant
What's In The Box
- FSS1 surface mount sensor unit
- Magnet face plate assembly
- Fixing hardware
Suitable Uses
- Government, correctional and military door monitoring.
- High security facilities requiring tamper resistant door position monitoring.
- Sites where traditional reed switches are not acceptable.
Dimensions

Download PDF Resources
| FSH FSS1 Series Door Monitoring Sensor Brochure |
Frequently Asked Questions
- How is this different from a standard reed switch?
It uses seven Hall effect sensors and a unique magnetic pattern, making it far more resistant to tampering. - Is this suitable for high security facilities?
Yes. It is SCEC approved to Security Level 4 and commonly used in government and custodial environments. - What is a common installation mistake to avoid?
Incorrect door gap or magnet alignment, which can prevent the sensor from recognising the correct magnetic footprint.
Additional Information
- The multi-sensor magnetic detection method is designed to resist spoofing or simple magnet bypass techniques.
- Surface mount models are typically used where drilling into the frame for conduit is not practical or permitted.
- Correct magnet alignment and gap settings are critical to maintain the certified security performance.
Technical Drawing
