It is used to find the wood, metal studs and joists , AC live wires when you are ... jobs MD-100S1.It is used to find the wood, metal studs and joists , AC live wires when you are doing ... towel barsf. Anchor machinery or furniture to walls g. Find metal pipes behind tile and in concreteh. Locates standard household wiring2 ... 55x26x23cmCTN Weight:4kgs, 20 pcs per CTN Stud/AC wire/Metal detector MD 300B