Portable Dissolved Oxygen ( DO) meter HANNA HI 9146

Hanna HI-9146 Dissolved Oxygen ( DO) Meter • On-screen tutorial messages • Two point calibration • Auto endpoint • DO range up to 300% , temperature compensated • Altitude compensation up to 4000 m • Salinity compensation up to 80 g/ L • Automatic calibration in air • GLP features • Low battery indicator HI 9146 is a water-resistant, dissolved oxygen meter that measures up to 300% saturation or 45 ppm ( mg/ L) with temperature compensation and automatic calibration. It has been developed for DO and temperature measurement in water, wastewater, and applications such as fish farming. This instrument also allows altitude compensation up to 4000 m and the ppm and % saturation are both compensated for changes in solubility of oxygen in water and for permeability of the membrane as well as the temperature effect. The included polarographic probe features built-in temperature compensation and removable protective membrane cover.