D4P120 | 4-WIRE POWER BOARD ONLY, D4120 | System Sensor

**System Sensor 4-WIRE POWER BOARD ONLY, D4P120** 4-WIRE POWER BOARD ONLY, D4120 System Sensor's D4P120 is a 4-wire power board designed for use with D4 series smoke detectors. It provides power to the detectors and allows them to communicate with each other. The D4P120 can be used in both new and existing installations. The D4P120 is a reliable and easy-to-install power board. It features a plug-and-play design that makes it quick and easy to connect to the detectors. The D4P120 also has a built-in LED indicator that shows the status of the power board. The D4P120 is a cost-effective way to add power to your D4 series smoke detectors. It is a reliable and easy-to-install power board that will provide years of trouble-free service. **Shop our HVAC supply store for the Best Prices and Fast Shipping on All Your Products!**