You can have the best stud finder, but it's imperative to use it properly. Understanding how to use a stud finder before starting a project can ultimately save a lot of frustration and money on repairs.  

Important things to keep in mind before using a stud finder: 

  • Check the batteries. Always use a battery with an extended expiration date at least 3 years beyond the current date. Weak batteries prevent the tool from operating optimally. 
  • Scan for studs at several different heights on the wall and mark the location of every target indicated by the stud finder. This is called "mapping the wall."  
  • Move up or down the stud and re-check stud locations to avoid false positives. Readings should always be consistent and repeatable.
  • Electronic stud finders are not designed for use over lath & plaster walls unless the tool has metal scanning capabilities.

How to Calibrate a Stud Finder

It's important to first calibrate the tool by placing it flat against the wall and then pressing the Power Button. The tool must calibrate to the surface being scanned for successful stud finding. If the tool flashes and beeps continuously, this means there is a calibration error. Try recalibrating the tool by placing it on the wall again, but start in a different location. Remember not to touch the wall surface with your free hand during the calibration or scanning process, as this could cause the tool to give off inaccurate readings. 

How to Know You've Located a Stud

While holding the Power Button down, slide the tool slowly across the wall until you find the edge of a stud. Most stud finder models will indicate the edges of a stud - Zircon Center Finding tools will indicate both the edges and center of a stud. Depending on which model stud finder you have, mark either edge of the stud (between these two points is the stud center), or mark the center. In general, studs are usually placed at 16" or 24" intervals. Once you've found the first stud, you can measure 16" or 24" across to approximate where the next stud is located.

Once you've found a stud, make sure you nail or drill in the center of the stud to ensure a secure hold, especially for mounting heavier objects.

When to Use DeepScan® Mode

Use DeepScan® mode only when scanning for deeper studs or for use with thicker layers of drywall up to 1 1/2" (38 mm) deep. Using this feature on a regular thickness wall will cause the tool to read studs a bit too wide or give a false reading. It may also disable the calibration error feature.

The battery compartment cover is also the belt clip. It is intentionally tight, so it won't accidentally pop open during normal usage. If you need to remove the belt clip to change the battery, click here for instructions.