Universal AC and DC microcomputer charging control with time function for reverse, spread and forward control as well as any release models through intelligent control of the charging quantity, two control voltage outputs DC 0.91 to 1.43 V or DC -3.6 to -2.85 V and AC 230 V/ ED (% ED variably adjustable), backlit display with touch function, service functions, support for the most common outside temperature sensors, characteristic curve switching: 4 operating modes for weekly program and absence, power reserve in the event of a power failure 12 h, top hat rail mounting - 3 division units, protection class IP 20 as standard with appropriate mounting, NTC standard outside sensor included in delivery (connection cable 3 m).