Model Number: 332 Pocket Dissolved Oxygen Tester Key Specifications/Special Features: Do scan 10 packetsDo tester with a 6-pin connecter that used for connecting thestandardDo probe, tester used to measures dissolved oxygen concentrationor percent saturation of waterFeatures:1 or 2 points auto-calibration (100% in saturated air or air-saturated water0% in zero oxygen solution)Automatically compensates salinity and barometric pressure after manual inputSelectable either temperature units between degrees Celsius (C) and degreesFahrenheit (F)

Automatic temperature compensation ensures high accuracy of measurements

Hold function freezes the current displayed value far easy viewing and recording

Auto-power off feature helps you effectively conserve battery life

Replaceable electrode reduces maintenance and replacement costs

Waterproof feature to ensures complete protection in harsh environments