Features: Adjustable sensitivity: High-sensitivity range: 24~1000V, low-sensitivity range: 90~1000V. The electrical tester safely insulated can detecting 90V-1000V AC-voltage. It has the flashlight can help you work much better in dark. Good ideal- for breakpoint Test. Handy- circuit tester for electricians, homeowners. Made of high-quality plastics, insulating, sturdy- and durable. Specifications: Material: plastics Length: approx 14.8cm/6-inch Type: VC10S/VC11S(optional), only VC11S adjustable Note: Please allow 1-3cm error due to manual measurement. please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Voltage Tester Pen