Tek-Iş Set Electrical Test Pen+Insulated Tape+Terminal

A Check Pen Is A Pen-Shaped Tool With A Tip Screwdriver That Indicates Whether An Electrical And Tape Circuit Is On Or Closed By The Flashing Of A Small Lamp Built Into It Insulating Tape Is The Tape Used To Wrap The Wire To Prevent The Conductivity Of The Electrical Current From Passing To Other Sides Terminal Is The Connection And Additional Device Of The Cables