Testboy 74 Layer Thickness Tester

LED - Light Emitting Diode - a small light source

Copper - A metal element with a chemical formula of CU. A excellent conductor of electricity and heat.

Zinc - A chemical element, a silver metal. Corrosion resistant. Combined with Copper makes Brass

Steel - An alloy made predominately of Iron combined with <2% carbon

Plastic - A generic term for a synthetic product used in the manufacture of products

Chrome - A shiney metalic finish where chromium is electroplated onto an object

magnetic - A susbstance affected at a microscopic level by an applied magnetic field.

iron - An electrical deviced used for removing creases from fabrics

iron - A chemical element (FE). The most common element on earth

Chrome - A shiney bright metalic coating of chromium applied to metals

Car - A machine used for transport which runs on roads

LED - Light Emitting Diode. A bulb that is very efficient at producing light. Often small.

Precise - A measurement on the accuracy of something

Layer - Adding extra quantities of materials for extra practical benefits, e.g. warmth.

Sturdy - something hat is very stable and is solidly built.

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