The sturdy, durable, and reliable YSI Pro20 can easily meet various portable dissolved oxygen measurement needs. The replaceable probe and cable, 50 sets of data memory, and "one click calibration" function make the operation simpler and more convenient. It is a high-quality choice for laboratory and field dissolved oxygen measurement.

Product Features

1. The "one click calibration" function can achieve dissolved oxygen in seconds

2. Calibrate and automatically obtain air pressure compensation

3. Can store 50 sets of data without the need for manual data recording

4. Optional polarographic or primary battery sensors

5. Built in barometer