permanent memory, can keep long time memory of its working mode Full ... protectionNewest design power supplyStop watch, so you can accurately keep track of time taken on a jobAllows ... how you like the pedal works: a long time work or just a short timepermanent memory, can ... Frequency: 50/60HZDisplay: Volts, Amps, Speed, Duty, Time, Stop watch, Pre set statusIf you are interested in our products , ...