: Specifically detects live electrical wires . When active, the "AC Tracking" icon illuminates, and the device indicates the relative intensity as you get closer to the source. Troubleshooting Common Issues
: I cannot directly provide a PDF or a verified copy of the Stanley FatMax Stud Finder 400 manual. I recommend you check the official Stanley website (under support/manuals), visit manualslib.com, or contact Stanley customer support. The model is often labeled as the SHP400 or similar. stanley fatmax stud finder 400 manual verified
Continue holding the button and slide the device across the wall. The LCD will indicate when you approach the stud's edge. : Specifically detects live electrical wires
However, a tool is only as good as its operator. Misreading the signals or skipping the calibration step leads to false positives, drywall damage, or worse—a 65-inch television crashing to the floor. I recommend you check the official Stanley website
For 90% of home users hanging TVs, shelves, or cabinets, the Stanley FatMax 400 remains a verified, best-in-class analog tool . It lacks live-wire detection, so buy a separate non-contact voltage tester for safety. But for stud-finding accuracy within 1/8 inch? It matches tools costing three times as much.