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. For more than 160 years, Klein Tools has manufactured premium-quality, professional-grade hand tools that deliver the performance, durability and precision needed to get the job done right. Our family of engineers, workers and craftsman continue to put six generations of expertise into every tool we create by using only the highest quality materials, superior workmanship, and keeping manufacturing as close to home as we can. Klein isn't just the name of our company, it's also our family name. And since we're an American company that's family-owned and family-run, you know you can count on us to be here tomorrow. Klein Tools doesn't just make great products, we make great products that stand up to the demands of the professionals who use them every day ... Since 1857. VERSATILE AC VOLTAGE DETECTION: The non-contact tester accurately detects AC voltage in various applications, from cables and circuit breakers to switches and outlets PRECISE VOLT PEN: The volt pen detects AC voltage from 12 to 1000V, providing visual and audible indicators for quick and reliable voltage detection 66-FOOT LASER DISTANCE METER: The incorporated distance meter accurately measures in meters, inches, and feet with high accuracy, up to 1/16 inch (0.16 cm) HIGH-VISIBILITY DISPLAY: The reverse contrast display ensures clear visibility in low light conditions, allowing easy reading of voltage and measurement results DURABLE HOUSING: Housing is rugged and built to withstand drops from 6.6ft (2m) INTUITIVE INTERFACE: The tester features a user-friendly interface with a single-button operation, allowing easy switching between laser distance measurements and voltage detection AUDIBLE VOLTAGE LEVEL INDICATOR: Audio indicator increases in frequency the higher voltage that is detected, or the closer the voltage is to the unit