Description Overview
The FSH FSS1-S is an award-winning, high-security door position sensor (DPS) engineered for government, defence, and high-risk installations across Australia. As a superior alternative to traditional balanced magnetic reed sensors, the FSS1-S uses seven Hall-effect sensors to detect a unique 3D magnetic footprint that cannot be defeated by external magnets or bypass attempts. This surface mount version suits both new construction and retrofits, and carries SCEC Security Level 4 (SL4) approval — the highest rating for Australian Government and defence use.
Key Features
SCEC SL4 Approved – Rated at Security Level 4, suitable for Australian Government, defence, and high-risk facility use.
7 Hall-Effect Sensors – Detects a unique 3D magnetic footprint using up to 8 magnets — cannot be defeated by external magnets or standard bypass techniques.
IP67 Environmental Protection – Fully sealed for indoor and outdoor high-security applications.
Smart Self-Calibration – Learns its environment on first door closure; can be recalibrated to account for door drop or maintenance.
Advanced Anti-Tamper – Multiple tamper switches with sophisticated detection to prevent bypass attempts.
Wide Voltage Range – Operates on 10–30VDC; compatible with Type 1/1A and Class 5 E.O.L. modules.
Surface Mount with Conduit Entry – Suitable for new builds and retrofits on existing high-security door frames.
UL 634 Level 2 Listed – Internationally recognised security standard in addition to SCEC SL4.
Technical Specifications
Specification
Detail
Model
FSH FSS1-S (Surface Mount)
Security Level
SCEC SL4 Approved / UL 634 Level 2
Mounting Type
Surface Mount (with conduit entry)
Operating Voltage
10–30VDC
Current Consumption
~10mA (Normal) / 45mA (Calibration)
Sensors
7 Hall-Effect Sensors / Up to 8 Magnets
Door Gap Range
1.5mm – 7mm
Alarm Trigger
15mm door movement
Alarm Outputs
2× N.O. & Common, 0.25A @ 30V
Tamper Contacts
N.C. & Common, 0.2A @ 30V
Environmental Rating
IP67 Weatherproof
Dimensions
75mm (L) × 34mm (H) × 35mm (D)
What’s in the Box
FSH FSS1-S Sensor Unit
Magnetic Array Faceplate
Conduit Entry Parts
Quick Installation Guide
Use Cases
Australian Government Facilities – SCEC SL4 approval meets the highest Australian Government security requirements for door monitoring.
Defence & Military Installations – Tamper-resistant 3D magnetic footprint detection for perimeter and internal high-security doors.
High-Risk Commercial Facilities – Suitable for data centres, critical infrastructure, and secure storage areas requiring advanced door position monitoring.
Outdoor & Exposed Environments – IP67 rating handles harsh Australian conditions including dust, moisture, and temperature extremes.
Retrofit Installations – Surface mount design allows installation on existing high-security door frames without major modification.
Official Video
VIDEO
Frequently Asked Questions
What does SCEC SL4 approval mean? SCEC (Security Construction and Equipment Committee) Security Level 4 is the highest security rating for door monitoring sensors used in Australian Government and defence facilities. SL4 approval means the FSS1-S has been independently evaluated and certified for use in the most sensitive and high-risk environments.
How does the FSS1-S differ from a standard balanced magnetic sensor? A standard balanced magnetic sensor uses a single magnet and can be defeated by placing an external magnet near the sensor. The FSS1-S uses seven Hall-effect sensors to detect a unique 3D magnetic footprint created by up to 8 magnets — this combination cannot be replicated or defeated by external magnets, making it significantly more secure.
What is the difference between the FSS1-S and the FSS1-F? The FSS1-S is the surface mount version, suitable for retrofitting onto existing door frames. The FSS1-F is the flush mount version, designed for concealed installation within the door frame during construction or major refurbishment.
How does the self-calibration work? On first door closure after installation, the FSS1-S learns its magnetic environment and stores this as its reference ‘footprint’. If the door drops over time or maintenance is performed, the sensor can be recalibrated to the new door position without replacement.
Is the FSS1-S suitable for outdoor installation? Yes. The FSS1-S carries an IP67 rating, meaning it is fully protected against dust ingress and temporary immersion in water — suitable for outdoor and exposed door frame installations in Australian conditions.
