I tested this which I received about a week after it was delivered and it doesn't work, buzzes on all the breakers and doesn't select which one it should. My advice don't buy it because when I emailed them they told me I only have 8 hours after receiving it to get a refund or a replacement.
VIVREAL 4 In 1 Stud Finder Wall Scanner With LCD Display - Center Finding Beam Finder And Sound Warning For Wood, AC Wire, And Metal Studs (Black/Silver)
24 Review
Thermometer B.Well WF-4000 white
57 Review
Detector Bosch GMS 120 Professional
28 Review
ICQUANZX LCR-T7 Transistor Tester: Advanced TFT Diode Triode Capacitance LCR ESR Meter
14 Review
π² Johnson RAS-1B Johnny Square: Professional Aluminum Rafter Square, 7'', Silver - Top Quality with 1 Square
8 Review
Kapro 307-08-TMS Try And Mitre Layout And Marking Square With Stainless Steel Blade, 8-Inch Length
18 Review
TV bracket Kromax DIX-18 black
52 Review
π Johnson Level and Tool 400EM-S 12-Inch Heavy Duty Metal Combination Square for Professionals, with Inch/Metric Measurements, Silver - 1 Square
8 Review