Fire Protection Kits from DITEK are designed for commercial alarm professionals specializing in fire detection systems. The FPK2 provides premium AC power and dialer protection in a convenient kit. The DTK-120S20A protects and filters AC power. Its diagnostic LEDs indicate AC power, unit operation, fuse status, and ground presence. The two MRJ31XSCPWP telco surge protectors cover both ends of the alarm panel’s dialer circuit.