Introduction
A level sensor is a device used to detect or measure the level of liquids, powders, or granular materials in tanks, vessels, or silos. It provides either continuous level measurement (pointing out the exact level at all times) or point-level detection (signaling when the material reaches a specific high or low point). Level sensors are essential in industries ranging from water treatment and chemical processing to food production and oil & gas. This article covers the main working principles, key features, advantages, disadvantages, and applications of level sensors.

Introduction

A magnetic flip board level gauge (also known as a magnetic level indicator or magnetic flap level gauge) is a reliable, visual liquid level measurement device commonly used in industrial tanks and vessels. It operates on the principle of magnetic coupling, using a float containing a magnet to flip colored indicator plates (flaps) from white to red (or another color) as the liquid level rises and falls. This article covers its working principle, key features, advantages, disadvantages, and applications.