1、[Self Sealing Valve] Water liquid level gauge adopts self sealing valve. When you remove the mounting screw, the self sealing valve will close by itself and cut off the oil line. 2、[Basic Accessories] This level meter is the oil tank, lubrication device, cooling box and gear box to display the level and liquid necessary accessories, suitable for mineral oil, water a glycol and other working media. 3、[Superior Performance] The level meter has reasonable structure, novel appearance, clear display of liquid level and liquid temperature, superior performance, sturdiness, crack proof, shock proof, and leak proof. 4、[Simple Installation] The water liquid level meter is simple for installation and you just need to get the size of the mounting holes and you can easily install it. 5、[Compact and Small] The compact size of this water level meter makes it easy to use and maintain, and very convenient.