Water Level Gauge
A water level gauge measures the free surface elevation of a body of water. It measures this elevation relative to a vertical datum. This information is helpful for navigational purposes. The gauge is also known as a stage or gauge height. It is a handy tool for waterways and reservoirs. It is used in many different applications. There are several different types of water level gauges available for aquariums. For potable water tanks, a two-inch gauge will give you a visible indication of water level. A plate glass type is ideal for vessels with water tanks that are more than 17 bar. These gauges can be purchased in a variety of colors and styles. The pressure sensors used in a water level gauge measure the pressure on the front surface and convert it to the height of the liquid. The pressure measurement equation is P=rH, where P is the atmospheric pressure on the surface of the liquid being measured, r is the density of the liquid to be measured, g is the local accele...