Countdown controller turns any piece of equipment on or off at the end of a set time period. Programmable in any 1-minute interval from 23 hours, 59 minutes, 59 seconds to 1 minute. Program controller in an instant with easy-to-use countdown time mode. A manual override permits equipment to be switched on or off instantly without disturbing the program. Rechargeable NiCad battery maintains programs in the event of power outage. In addition to the countdown mode, the controller also has a time-of-day mode, which permits programming 14 different time-of-day clock switchings, up to 196 on/off switchings per week. Supplied with an individually serial-numbered Traceable® Certificate to indicate traceability to standards provided by NIST. LED indicates status of attached equipment. Has a timing accuracy of 0.01% and a 1/2-inch-high LCD display. Three-pronged grounded receptacle relay turns on/off apparatus to 125 VAC, 15 amps, 1800 watts and 1/3 horsepower. LED indicates the on/off mode of attached equipment. CSA-and NTRL-C-rated. High-impact ABS case is 4-3/8 x 2-1/8 x 1-3/4 inches. Weight is 5-1/2 ounces.