The NCVT2PKIT From Klein Tools Includes A Dual-Range, Non-Contact Voltage Tester As Well As A Receptacle Tester. The NCVT-2P Is A Non-Contact Voltage Tester That Detects 12 to 1000V Ac and Indicates The Presence Of Voltage In Cables, Cords, Circuit Breakers, Light Fixtures, Switches, Outlets and Wires As Well As Ac Voltage In Doorbells, Thermostats, Low Voltage Lighting and Irrigation Systems. Includes Both Visual and Audible Signals. The Receptacle Tester Will Troubleshoot Standard 120V Ac Grounded Outlet