Overview
The STI MS0N Duo Lamp 21A is a dual-function strobe and beacon lamp manufactured by Safety Technology International (STI). This industrial signaling device combines visual alert capability in a compact, reliable design. The MS0N Duo Lamp is commonly specified for emergency signaling, alarm notification, and visual communication in industrial, commercial, and institutional applications where high-visibility alerting is critical.
Key Features
- Dual strobe and beacon functionality in single unit
- Designed for 21-amp circuit compatibility
- Industrial-grade construction for durable operation
- Compact design suitable for wall or panel mounting
- Bright, attention-commanding light output for safety-critical applications
- Reliable performance in industrial environments
Technical Specifications
The MS0N Duo Lamp operates as a visual signaling device with integrated strobe and steady-beacon modes. The 21A rating indicates compatibility with standard industrial circuit protection and power distribution systems. Consult the manufacturer datasheet for exact voltage input, light intensity (candela), flash rate frequency, and mounting dimensions.
Typical Applications
- Industrial alarm and emergency signaling systems
- Machine guarding and hazard notification
- Safety perimeter alerts and visual communication
- Warehouse and logistics safety signaling
- Control panel and equipment status indication
- Compliance with OSHA and safety standard requirements for visual alarms
Compatibility & Replacements
Compatible With
- Industrial control panels and DIN-rail mounted systems
- Standard 120 VAC and 24 VDC circuits (verify with system design)
- OSHA-compliant safety notification networks
- Integrated with relay-based and PLC-controlled alarm logic
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator or STI technical support before ordering. Consult the original equipment manual to confirm exact replacement model compatibility.
Works With
- Alarm control modules and notification panels
- Industrial relay logic and PLC alarm outputs
- Emergency notification systems (ENS)
- Safety relay circuits and hardwired alarm systems










