The SUP-DY3000 Optical dissolved oxygen meter is a high-quality product offered by our factory. This meter is designed specifically for measuring dissolved oxygen levels in liquids, making it ideal for use in a variety of applications. With its advanced optical sensor, this meter provides accurate and reliable readings with a high degree of precision. The SUP-DY3000 features a user-friendly interface and easy-to-read LCD display, making it easy to use by anyone. Additionally, as a factory, we take great pride in producing high-quality products, and this dissolved oxygen meter is no exception. It is durable, reliable and accurate, making it the perfect tool for your dissolved oxygen testing needs.