How do I know if my 77-720 or 77-730 stud sensor has been recalled?

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In April, 2009 - a few models of stud sensor were recalled. These models were the Stanley® Stud Sensor 200 and FatMax® Stud Sensor 400 (Model numbers 77-720 and 77-730). A software error may have caused these products to calibrate improperly, potentially affecting the products’ ability to detect AC electrical wires.

Not all units were affected. If you have one of these models dating back to 2009, you can determine whether or not it is a defective model by opening the battery cover. If there is a date code that begins with an R, your unit is not defective. If there is no R inside the battery cover, please contact us at (866) 215-1132. We will arrange to have the recalled item picked up at our expense and will send you a replacement when we receive the defective one.