1.. NonContact Insulation Voltage Testing: The multifunctional intelligent breakpoint electrician test pen offers noncontact insulation voltage testing, ensuring safety and accuracy in your electrical work. 2.. Large Display and Flashlight: This voltage tester features a large display for easy reading of measurements. It also includes a builtin flashlight for added convenience when working in lowlight conditions. 3.. Material and Compact Size: Made of PP material, this test pen is designed for durability. Its compact size of 19 cm x 4 cm x 2.9 cm makes it easy to carry and use wherever needed. 4.. Adjustable Sensitivity: This digital penstyle multimeter has an adjustable sensitivity function that allows you to the detection range according to your needs, making it versatile and suitable for various applications.