Federal Signal K859901989A-1800 EOL/Series Resistor 1.8K Ohm

Deliver dependable end-of-line supervision for fire alarm loops with the Federal Signal K859901989A-1800 EOL/Series Resistor 1.8K Ohm. As a Fire Alarm Control Panel Accessory from Federal Signal, this resistor provides the precise 1.8K Ohm termination needed to maintain supervised circuits and consistent monitoring across detection and call-point assemblies. Proper end-of-line resistance helps reduce nuisance alarms and ensures the control panel can accurately detect open or short conditions — a core requirement for reliable security and life-safety monitoring.

Specifically engineered to integrate with Federal Signal flameproof and hazardous-location call points, the K859901989A-1800 (manufacturer part number K859901989A-1800) is a compact, easy-to-install accessory that supports field servicing and inventory standardization. Its predictable electrical characteristics make it ideal for technicians and systems integrators who manage fire alarm, surveillance, and overall security infrastructure in industrial sites. Add this durable EOL resistor to your fire alarm accessory kit to maintain circuit supervision and improve system uptime — order now to support compliant, reliable monitoring solutions.

• Ensures reliable end-of-line supervision for fire alarm circuits, improving monitoring accuracy and reducing false alerts
• Precision 1.8K Ohm resistor value (K859901989A-1800) for consistent circuit termination and detector supervision
• Designed for use with Federal Signal flameproof and hazardous-location call points and fire alarm control panel accessories
• Simple, low-profile accessory that streamlines installation and maintenance to minimize system downtime
• Robust component selection supports security and surveillance system integrity in industrial and hazardous environments