Detachable Probe Dissolved Oxygen Meter with Digital Screen for Aquarium Experiment Research (No Backlit) Dissolved Oxygen Meter Detachable Probe Digital Screen Display Dissolved Oxygen Sensor For Aquarium Experiment Research Without Backlit 1Oxygen and Temperature: This dissolved oxygen meter can be used to measure dissolved oxygen and temperature. Inbuilt microcomputer processor calculates and compensates all dissolved oxygen and temperature related measurement data. 2Detachable Probe: This dissolved oxygen sensor adopts detachable probe, easy to replace, equipped with 6 probe protective covers. 3Digital Screen Display: This dissolved oxygen tester adopts digital screen display, which is clearer and more convenient to read the data. Support auto power off in 8 minutes if not using it. 4Temperature Compensation: Oxygen solubility will be affected by temperature, atmospheric pressure, and salinity. Our instrument with temperature compensation can meet normal use. 5Wide Application: This dissolved oxygen meter is widely used in aquariums, swimming pools, pond, freshwater aquaculture, Marine aquaculture, school teaching experiment, laboratory sterile environment, aquaculture, scientific research and other fields