KT-300T series sequence controller cabiet,arbitrarily zone,easy to operate and easy to maintenance Select output voltages Output voltage : DC24V or AC 220V, in order to have equal output voltage for solenoid input voltage Operation Modes : With supporting A/B modes, users can set open & close time of gate depending on user's various operating conditions Precise time control:Minimum 0.01 seconds,Maximum 999 seconds Manual on/off function CE certificationTime Sequence Controller suppliers website:http://www.astcontrols.com/time-sequence-controller/