Non-Contact Voltage Tester Pen and Outlet Tester Socket Tester kit with LED Flashlight Pre-Installed Battery                          Feature:                           High Quality Voltage Tester Pen:                           Voltage Tester Pen accurately detects AC voltage ranging 12V～1000V(High Sensitivity) / 48V～1000V(Low Sensitivity) (Switch with S Button) , distinguishing them into 3 voltage levels.                          Ac Voltage Detector has LED light indicator ,Sound and LED alarm                          AC non-contact voltage testers are easy to use — just touch the tip to a terminal strip, outlet, or supply cord. All operations work by two buttons                          Tester outlet : Versatile Tester Checks EU Power Outlet Sockets for Correct Wiring and Trip Function for GFCI                          The task of Socket Tester is finds correct breaker or fuse and test socket. You will have annoyance no more for locating the correct circuit breaker supplying power to an AC outlet or lighting fixture.                          Package Included:                           1 x Non-contact Voltage Tester Pen                          1 x Socket Tester(EU Adapter)                          1 x User Manual