Zircon stud finders do not require the removal of any screws to install batteries. Do not unscrew the tool. This will release the components inside and cause it to work improperly.
Tip Minute on How to Change Battery
For the appropriate battery installation steps for a specific model, please click here, give us a call:1-800-245-9265, Monday through Friday, 8:00 AM to 5:00 PM Pacific Standard Time, or visit the Support Center.