Smart Dissolved Oxygen Meter Kit with Spare Components Electronic Portable DO Tester with Reinforced Polarographic Probe for Aquariums Fish Tank

[Accurate and Consistent Readings] UIUZMAR Dissolved Oxygen Meter using reinforced polarographic probe with a replaceable oxygen-permeable PTFE membrane cap can always give accurate and consistent readings. Automatic temperature compensation and manual input for salinity and barometric pressure compensation through app keep the excellent performance in different circumstance.
[Smart DO Analyzer with APP] Now you can use the DO analyzer more conveniently by the app. Connect the dissolved oxygen meter with your phone in mobile app to complete more complicate jobs like setup salinity and barometric pressure compensation. What’s more, you can also record, manage, and share your testing data with friends anytime.
[Easy for Use and Calibration] Easy calibration for saturated air (slope calibration) and zero-oxygen (zero calibration) with automatic identify program. Anyone even an amateur can complete the slope calibration easily before each use. It is recommended that zero calibration is required for first use, and slope calibration is required before each use. UIUZMAR also provide detail user manual and video about how to use and maintain the DO meter.