HANNA HI 9146-10

This Hanna dissolved oxygen ( DO) meter offers automatic temperature compensation plus manual compensation for altitude and salinity, so you get accurate results. Hold function lets you freeze readings on the LCD. Meter includes probe with cable and protective sleeve, two spare membranes, 30mL electrolyte solution, four AA batteries, hard carrying case and instructions. Durable, economical Meter includes a protective cover for the polarographic probe so you can test groundwater in wells and other tight spaces without damaging the membrane. A great choice for field use! A hold button allows the user to freeze readings on the LCD. The temperature range is indicated in Celsius from 0 to 50° C with 0.1 resolution.