Digital Lab Timer controls up to 1hp single-phase motors or 20 amp loads. Bright 1/2in (12.6mm) LED display shows remaining time, stops machine at zero, then resets to programmed time for next use. Test times are set with tactile panel buttons. When stopped and restarted, countdown resumes from paused time. Timer operates in four modes with capacities of: 9,999 sec, 9,999 min, 99:59 min:sec or 99:59 hr:min. Electronics are mounted in a stainless steel case. The timer has a three-wire receptacle for timed devices. TSA-169RF has two 6ft (3m) three-wire cords without plugs for connection to mains and machine. Overall Size: 4.5x5x5.5in (114x127x140mm), WxDxH. Est Ship Wt.: 3lb (1kg).