The PD6662:2010 compliant two-way keyfob (FOB-2W-4B) and one-way keyfob (i-FB01) both enable the user to remotely unset/set the system. The two-way keyfob provides feedback on system status and confirms that the system has been set upon exit whilst the two-way keyfob can be programmed to be used as a panic button Both are designed to fit comfortably in your pocket or on a key ring. Compatible with all current Eaton security control panels.