The Dissolved Oxygen Meter (O2) HI 96732 uses a colorimetric measurement method. This Dissolved Oxygen Meter HI 96732 (O2) has two advantages: the measurements are made in a very simple way and it requires minimal maintenance. Thanks to its advanced technology, the Dissolved Oxygen Meter (O2) HI 96732) is known for its good legibility of large dual digital display. The exclusive CAL CHECK ™ feature allows the Dissolved Oxygen Meter (O2) HI 96732 a check and a calibration through CAL CHECK ™ standard. Because the Dissolved Oxygen Meter (O2) HI 96732 is compact and accurate, it is ideal for portable applications and for use in the laboratory.