This is a Stanley IntelliSensor 77-100 Stud and Joist Locator designed to accurately detect and locate studs and joists behind plywood and drywall.

The device features scanning technology with fully automatic calibration, audio and visual detection, and easy-to-use instructions. It has a yellow plastic casing with LED display and audio indicators to detect stud edges.

The package includes the stud sensor device and an instruction manual. A 9 volt battery is required but not included.

Made in China. The product is new and factory sealed in original packaging.

Condition: excellent, no visible wear as it is unopened in original packaging.