Scantronic PD6662 Grade 2 or Grade 3, 10 zone control panel, expands up to 50 zones. Will expand using either 10 zone wired or 10 or 30 zone radio expanders. On board Ethernet port for easy configuration using a web browser. Can connect up to 20 expanders or keypads. 100 users can be assigned and each user can have code, proximity tag, PA button and remote control. Will support 1 * 17Ah battery