EASY TO USE: Easily determine whether something is magnetic.
VISUAL ALERT: Red and green LEDs distinguish North and South (red for "N", green for "S")
AUDIBLE ALERT: A loud buzzer pinpoints each pole's location.
EASY TO CARRY: Practical pocket clip and pen style makes it easy to carry.
POWERED BY: 4 LR44 batteries which are included.
GENERAL TOOLS: We have been a recognized leader in the innovation, design, and development of specialized precision tools for many years. We encourage craftspeople, artisans, and DIYers to work smarter, measure better, and increase productivity.