It offers 50, 100, 250, 500, or 1000 V output voltage to meet different requirements

It offers 50, 100, 250, 500, or 1000 V output voltage to meet different requirements 
This portable tester boasts a broad range of insulation resistance and performs a polarity shift of automatic voltage testing. It offers 50, 100, 250, 500, or 1000 V output voltage to meet different requirements. It provides a 7 mA continuity function which is useful for inductive line testing. More...