Standard Control(CTRL-99BMI)The Type 99B Clock Controller is a microprocessor based master clock that provides completely automatic control of Electric Time minute impulse (MI) clocks & 24 VDC (RP) movements. ¢ Provides “Minute Impulse (MI) Control (clock hands index from one minute to the next) ¢ Automatically resets clocks after power failures (resets at 6x speed) ¢ Automatically resets clocks for daylight savings time (if required) ¢ Precision Quartz Time Based ¢ Optional GPS interface for ultimate time keeping accuracy ¢ 10 year battery backup for time base ¢ For indoor or outdoor use ¢ Protected to IP65 ¢ ETL listed to UL 863, Seventh Edition & CAN/CSA C22.2 No. 6-M1984