Portable 5-In-1 Water Quality Test Pen With Color Screen – TDS, Salt, EC, PH, Temperature & USB Char

Need quick answers about practical use? This video highlights the essentials. Join us for a comprehensive demonstration of the Portable 5-in-1 Water Quality Test Pen with Color Screen. You'll see how this versatile instrument measures TDS, salt, EC, pH, and temperature in real-time applications. We'll walk through its intuitive color screen interface, USB charging capabilities, and practical use cases across various industries. Learn how this advanced testing tool from Shenzhen Yieryi Technology delivers precision and convenience for professionals in environmental monitoring, food safety, and water quality management.