2-in-1 fuel tester to quickly check both fuel quality and water content. For E10, regular, and premium gasoline, and 2-stroke blends. Fuel quality is determined in just a few minutes. It also indicates the presence of water. An excellent tool for adding value to your workshop's service. Saving time and money in troubleshooting. Excellent for raising customer awareness of fuel quality and the resulting problems caused by the use of unsuitable gasoline. Contents: 60 testers per pack.