Compact Vibrating Fork Point level switch for liquids and solids. The fork point vibrates when it detects any liquid or solid within its range. This makes it ideal for detecting leaks in pipes, tanks, barrels, drums, etc. This compact vibrating fork point level switch is ideal for liquids and solids. The unit has an adjustable sensitivity range between 0.5mm to 5mm. This allows it to be used as a general purpose level switch or as a more sensitive level switch for liquids and solids such as oil, grease, paint, etc.