Food Detector:The is a multi-functional capacitive screen nitrate food water quality environmental safety tester for vegetables, fruits, meat and fish, designed to help users quickly and accurately detect nitrate content in food, water quality and the environment. High Quality:These two testers use capacitive screen technology with high sensitivity and accuracy to measure trace amounts of nitrate to help users assess the safety of food and water quality. Easy to Use:The has simple and easy to use operation interface and intuitive display screen. Users only need to put the sample to be tested into the instrument and wait for a moment to obtain accurate test results.just 3 seconds with less than 10% margin of error. Portable Design:The test instruments also have a mobile phone connection function, which can store and share data through mobile phone applications, which is convenient for users to manage and analyze test results. In addition, they offer rechargeable batteries for long periods of time, making them easy to carry and use. Wide Application:The detection instruments can not only measure the nitrate content in different types of food such as vegetables, fruits, meat, fish, but also can be used to measure the water quality of different sources such as tap water, well water, lake water. In addition, they can detect nitrate levels in the environment, such as indoor air, soil, etc., to provide a comprehensive safety assessment.