• Conveniently Sized - The sleek and smart design of raniaco voltage pen is created using a blend of ABS and PVC components to impart enhanced durability, while the pocket clip lets you handle it with ease. • Wide Range - The voltage tester pen is highly sensitive and capable of detecting AC voltage even if it is extremely weak. Its range is from 12V to 1000V, which makes it perfect for testing electrical lines. • Very Effective - The tester can detect live wire at close range without even touching it. Since the sensitivity is auto adjustable, the testing is extremely simple. The low profile sensor probe tip with advanced sensitivity identifies voltage at both commercial and residential outlets. • 100% Safe - Your safety will never be compromised as this is a fully no-contact tester. There is an audible and visual alarm that acts as a safeguard. No longer do you need a professional electrician to determine if a wire has electricity running through it! • Anti-Slip - The tester might be small in size, but the ergonomic structure ensures that it doesn\'t slip and fall. Extruded grip prevents accidents even in places with little light. Use the LED torch to maneuver in dark or low light areas.