Liquid Meter utilizes various types of materials and technologies to provide ultra-thin Liquid Sensor information to consumers. The app measures the level of TDS (Total Dissolved Solids: ppm) of drinking water and provides a variety of information about the level of water. The sodium sensor measures the Na (sodium) concentration of the food and helps to manage the low salt diet during meals. In addition, Oil controls the degree of rancidity of edible oil, and Urine can measure urine easily to measure the kidney, liver and diabetes. Liquid Meter App makes it easy to manage a variety of information.