They will not provide a stable (0) resistance reading when two probes are held together. I used sandpaper on a rotary tool to remove all of the chrome; now they work fine. They were made in China.
Stud Finder Wall Scanner - 4 in 1 Electric Wood Detector: LCD Display, Center Finding & Sound Warning β Black
9 Review
𧲠5-in-1 Electronic Stud Sensor Wall Scanner with Magnetic Stud Finder, HD LCD Display and Audio Alarm for Wood, AC Wire, and Metal Stud Detection
9 Review
Advanced 5-in-1 Stud Finder Sensor for Precise Wood and Metal Detection - Electronic Wall Scanner with LCD Display for Studs, Beams, Wires, and Joists (Silver)
9 Review
Tavool 4-in-1 Electronic Stud Sensor Beam Finder - Wall Scanner for Center Finding with LCD Display - Detects Wood, AC Wire, Metal Studs, and Joists
6 Review
Kapro 307-08-TMS Try And Mitre Layout And Marking Square With Stainless Steel Blade, 8-Inch Length
18 Review
β Stainless Steel L-Square, Size 3-Inch x 4-Inch, Zona 37-434
8 Review
TV bracket Kromax DIX-18 black
52 Review
Kapro - 353 Professional Ledge-It Try & Mitre Square - For Leveling And Measuring - Features Stainless Steel Blade, Retractable Ledge, And Etched Ruler Markings - 12 Inch
23 Review