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)

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