Waterproof PT Testr 35 (pH & TDS)

Two important measurements in one instrument. The PCTestr tests conductivity and pH while the PTTestr tests TDS and pH. They feature easy-to-read displays, push-button calibration, HOLD function, and error messages. Valox® housing and stainless steel electrodes offer good chemical compatibility and durability, and are designed to float,. All waterproof Testrs have replaceable sensors.