Hioki L9788 10 - Red Test Lead with Remote Switch – This test lead is suitable for using the FT4310 bypass diode tester and insulation tester. It comes with a lighting LED lamp and comparator indicator. It is suggested to operate the device only when the main unit provides a comparator function. The red colour of the lead offers easy identification, and it comes with the remote switch option. The equipment comes with a 1.2m length and thus provides a comfortable operation.