Modern Engineered has various types of sight glass gauges. We have gauges for viewing thru the top of the tank or from the side. We have direct read sight gauges and magnetic flag type of level gauges.
The 9900 gauge was originally designed for marine tanks that needed a secure means to view the level in a tank on a vessel.
The EPG gauge and KTV valves provide an economical means to gauge tank level.
The KENCO Magna-Site is a magnetic liquid level indicator used to determine the volume of liquid contained within a vessel.
TVG II sight glass window for tank top viewing