Mettler-Toledo Oxygen Meter Seven2Go polarographic DO Meter S4-Meter

Seven2Go portable oxygen meter (DO meter) S4-Meter
Intuitive routine instrument (IP67) for mobile measurements of dissolved oxygen (DO) in laboratory, production and field with a wide range of functions:
-very simple, intuitive operation, robust and ergonomic design
-large multifunction display: everything at a glance
-ISM® (intelligent sensor management)
-data logger for 200 data sets
-automatic air pressure compensation
-automatic, timer-controlled or manual measured value acquisition
-water and dust protected (IP67)
-operation: AA batteries or rechargeable batteries

Without electrode