Stanley Stud Sensor - STHT77588-0

The sensor uses two AAA batteries, which are included.

The sensor can detect wood studs up to 25mm (1 inch) and metal studs up to 38mm (1.5 inches).

Place the sensor flat against the wall, press and hold the power button until the calibration is complete.

Yes, it detects live AC wires and provides a warning.

The center marking channel helps you accurately mark the stud location on the wall.

The sensor is designed for use on most common wall materials like drywall and wood. However, very dense or thick walls may affect its performance.

Wipe the sensor with a clean, damp cloth. Do not use solvents.

The sensor has a 1-year warranty.

Check the battery installation and replace the batteries if needed.

Recalibrate the device. Ensure that the wall surface is flat and clean, and avoid placing it over any existing holes or damage.

Ensure the device is calibrated correctly. Metal studs, moisture, and other factors can impact readings. Try scanning in multiple areas and directions.

AC wire detection has limitations and should not be relied upon as the only safety measure; ensure power is off to the area being worked on if possible.