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YSI Pro 1020
Rugged and reliable, the YSI Pro1020 provides everything you need in a handheld instrument for the measurement of either pH or ORP along with temperature, and dissolved oxygen.
User-replaceable sensors and cables along with convenient calibration routine feature makes it extremely user friendly. Mil-spec (military spec) connectors, IP67 waterproof and rubber over molded case, and 1-meter drop tests ensure the instrument remains in your hands to provide years of sampling even in the harshest field conditions. The feature set of the Pro1020 results in a low total cost of ownership over the life of the product and proves that it is smarter, tougher, and more versatile.