FOOD NITRATE TESTER - The compact and lightweight device is small enough to fit in your pocket or simply carry it in your bag to take it anywhere. Food Detector - It has long been found that excessive nitrate is harmful to health. This is a multifunctional device that can test the nitrate content in fruits, vegetables, meat and fish for your healthy life FOOD NITRATE CHECKER WITH FAST AND ACCURATE RESULTS - No food is completely safe. Even fresh fruits and vegetables can make people sick of contaminants caused by bacteria, pesticides and other residues. Our device can display your nitrate test results in just 3 seconds with less than 10% error tolerance. Food Safety Tester - We are dedicated to improving the quality of life and protecting ourselves and our children from the injury of harmful impurities, nitrates and nitrites. A revolutionary new food safety test device from Greentest that has been developed. G Food Health Tester - Our food tester can be used by small farmers, retailers, shop owners, caterers and other people with a stake to serve healthy food › See more product details Model: Size: Color: