Product Overview
Sixteen key materials mounted in a plastic case with a built-in electrical conductivity tester. When the battery is installed, and the two metal test pens make contact with a conductor to form a closed circuit, the indicator LED will light up. Requires 2 AA batteries (NOT included).
This set can be supplemented by purchasing together with the catalog Item No. 28-628000 Bar Magnets so that students could test magnetic properties of the included 16 materials in addition to their electrical conductivity.