TDSTestr Calibration Kit

Protective carrying case organizes meter and materials Includes everything you need for convenient calibration Calibration standards are made with NIST traceable materials Each kit contains TDS Singles calibration pouches (two each of 447 S, 1413 S, 2764 S, 15,000 S, and rinse water)and sample jar all in a hard shell carrying case with room for your TDSTestr (order Testr separately).TDS Singles are handy, single use pouches that each contain 20 ml of fresh calibration solution. Accuracy is 1% at 25C.