Features: Non contact designs, can measure the liquid level height, accurate and stable; High sensitivity, can adapt to different liquid types; Waterproof and corrosion resistant, long service life. Using advanced non contact technology, no direct contact with liquid, safe and reliable. It has the characteristics of high precise and fast response; Suitable for all kinds of liquid media; Easy to install and maintain. Suitable for professionals in industrial production, warehousing, environmental monitoring and other fields, as well as individual users who need to monitor liquid levels. Widely used in oil tanks, water tanks, chemical containers and other liquid storage equipment level monitoring; It can also be used for liquid level detection in home systems, such as water dispensers, washing machines, etc. Specifications: Material: PC Diameter: Approx. 28.3mm/1.11in Type: 1/2 Package Includes: 1x Liquid Level Sensor Module note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.