An essential tool for testing light switches is a continuity tester. You also can use a multimeter by turning the dial to read “continuity.” ...

Q. I installed a dimmer switch in my dining room and now the chandelier only works half the time. There are two switches in the room that control the light. They worked fine before I started the jo… ...

Cleveland, Ohio Keithley Instruments, Inc. has expanded the Series 3700 system switch/multimeter and plug-in card family with the addition of two plug-in cards the Model 3724 dual 1X30 solid-state FET ...