The Krueger 16N508 is a magnetic level gauge for indicating liquid levels in tanks and vessels. It features a 316 stainless steel chamber and a Teflon float with a magnetic coupling that activates indicator flags as the float moves with the liquid level. This provides a visual display through glass windows. The gauge withstands temperatures up to 500°F and pressures up to 500 psi, has 3/4 inch NPT process connections, and is suitable for water, oils, and other compatible liquids. It requires no power and has no moving external parts, making it a reliable liquid level indicator.