4-In-1 Distance, Metal, Voltage and Stud Detector

Features: 1) Measures from 2 feet up to 50 feet (60cm up to 15m) with laser pointer 2) Detects wood and metal stud up to 3/4" 3) Detects metal pipe up to 30mm 4) Detects AC line wire 75mm 5) Ultrasonic distance measure 6) Easy-to-read LCD 7) Built-in calculator for measuring areas and volumes 8) Adds and subtracts linear measurements, area and volume 9) Memory function 10) Choose from m/ft. units 11) Metal , stud and AC live cable detector 12) All functions audio indicator and LCD 13) All functions auto calibration detection 14) Operated by one piece of 9V battery (battery not included)