The Klein Tools NCVT-6 Is A Non-Contact Voltage Tester (NCVT) With An Integrated Laser Distance Meter. It Can Detect Voltage Over The Full-Range From 12 to 1000 Vac and Can Measure Distances From 2-Inch (51 MM) Up to 66-Feet (20 M). The Laser Distance Meter Functions Independently From The NCVT With A Simple-to-Use Intuitive Interface. Easy, Single-Button Changes Between Voltage Detection and Laser Distance Measurements.