Extech MD10 Non-Contact Magnet Detector Pen with 6.25 x 0.8 x 1 inches, Blue
Designed to quickly and safely identify the presence of magnetic fields, this pen-sized tool eliminates the guesswork when testing solenoid valves, relays, and coils. Beyond its powerful detection capabilities, the MD10 features a built-in bright white LED flashlight to illuminate dark workspaces, cramped engine bays, and poorly lit electrical cabinets.