The TOTAL Ac Voltage Detector 12~1000V Model THT29100026 is a reliable voltage tester designed for electrical trade professionals and DIY enthusiasts. It has high sensitivity for AC voltage ranging from 12V to 1000V and low sensitivity from 48V to 1000V, ensuring accurate detection. It features a sound and light alarm mode, white LED flashlight, low battery indication, and auto power-off for convenience and safety. Packed in a color box for immediate use.