GraLab

Accurate and durable 60-minute timer with sturdy case and protective covers to prevent corrosion. Two three-wire outlets allow automatic switching of external devices. The Model 171 60-Minute Timer provides precise timing for industrial and laboratory work with second- and minute-hand settings. With...

Universal Time Switches Spring-wound mechanism turns off electrical equipment automatically at end of preselected interval Turning the pointer-knob to desired dial setting winds timer and energizes load receptacle for standard 120-volt, 3-prong grounded plug on back of housing Maximum load 10...