Our selection of testers will help identify faulty wiring problems in electrical receptacles and GFCIs, helping prevent electrical fires and other hazards. Whether your doing home DIY projects or professional electrical work, these testers can tell quickly and easily tell you what's wrong with your wiring. Additionally, our line separator can isolate electrical conductors so that they can be more accurately tested with a multimeter, and is also capable of measuring surge currents. Our satellite strength meter will also help you when installing or re-aligning your satellite dish.