Eisco® 3 in 1 Weather Station

When plugged into a detector coil, the LED flashes red or green as the detector coil passes through the magnet to indicate which direction the current flows through the detector coil.

Comprised of alloy mix of Al, Ni, and Co, is stronger and last longer than Iron magnets.

A 400 turn wire coil on one end of a wand that has two terminals at the other end to accommodate banana plug contacts, permitting easy connection of an electric circuit.