The Lux Egg-Per'Fect timer
features the ability to insure soft, medium and hard boiled eggs as
cooked perfectly every time. The EP100 sits in the pot with the eggs and
changes color as the eggs cook to show when the eggs are ready
regardless of egg quantity or altitude. The EP100 senses heat, not time
for consistency eliminating over or under cooking. Egg textures and
color are perfect every time.