In every home that uses electricity, a small box can be found on one of the walls. This box is a meter box. Once a month, the electricity company looks at the meter numbers on the meter, checks the electricity used in the meter house, and then charges the homeowner the full cost. This type of meter is called an electric meter. Before the advent of electricity, there was a gas meter. The gas meter includes a moisture meter; There are two types of dry meters. A wet meter is called a wet meter because it contains only half the water. Usually, dry mites are not used. The gas meter consists of two gas-cooled chambers, each equipped with an air furnace.