Discover the efficiency of Von Duprin's 900-4RL Relay Distribution Power Supply Board, designed with integrated logic for enhanced control. This board is perfect for managing security interlocks, auto operators, and time delays, ensuring your systems operate smoothly. It features a universal 120-240 VAC input, battery backup that auto-selects voltage, and a comprehensive monitoring system with LED indicators for both AC and DC outputs. An optional Fire Alarm Emergency Interface Relay enhances safety and compliance. Upgrade your security system's reliability and functionality with this top-tier solution. Don't wait, secure your Von Duprin power supply board today!