The HI9142 is a rugged, portable, waterproof dissolved oxygen (DO) meter designed to provide reliable measurements under harsh environmental conditions. The meter features manual calibration and an auto-off function. The HI9142 is supplied complete with polarographic probe, PTFE membrane caps, electrolyte fill solution, protective shield, and rugged carrying case.

The HI9142 is a durable, waterproof dissolved oxygen (DO) meter designed to provide reliable measurements under harsh environmental conditions. The meter features manual calibration at 100% and automatic calibration in zero oxygen solution. The HI9142 includes a polarographic probe with replaceable polytetrafluoroethylene (PTFE) membrane caps and protective shield. The rugged, waterproof housing of the HI9142 solves many of the problems with frequent field use.