1、WIDE APPLICATION: Water level controller is widely used in anti dry water level sensors of water heating equipment such as water dispenser, water heaters, solar energy, humidifiers, coffee makers, small refrigerators, etc., and is widely used in automobiles, industrial equipment, agricultural equipment, and household appliances. 2、NORMALLY CLOSED AND NORMALLY OPEN: Our liquid level controller can be adjusted manually. Use a pliers to pull out the snap ring under the float switch and adjust the direction of the float. 3、STAINLESS STEEL MATERIAL: Made of 304 stainless steel material, resistant to acid and alkali, high temperature, corrosion, good material, and long service life. 4、EASY TO INSTALL: Comes with a small size and a lightweight as well, this controller can be easily installed for accurate and efficient work! 5、IDEAL REPLACEMENT: Wonderful replacement for the old and damaged parts, fine workmanship, attention to details, helps you improve the working efficiency!