The Myron L Techpro II is a handheld water quality testing instrument that measures conductivity, total dissolved solids (TDS), pH, and temperature. It features a large, easy-to-read digital display and a simple user interface with intuitive buttons for easy operation. The instrument is designed for accurate and reliable measurements in a variety of applications, including drinking water, wastewater, and industrial process water. It also has durable and rugged construction for use in harsh environments. The Techpro II is a versatile tool for water quality professionals who require accurate and reliable measurements of multiple parameters.