1. [OXYGEN AND TEMPERATURE MEASUREMENT] Measure dissolved oxygen and temperature accurately with built-in microcomputer processor for precise calculations and compensations.
2. [DETACHABLE PROBE] Easy to replace detachable probe with 6 protective covers for convenience and durability.
3. [DIGITAL SCREEN DISPLAY] Clear digital screen display for easy reading of data, with auto power-off feature after 8 minutes of inactivity.
4. [TEMPERATURE COMPENSATION] Ensure accurate readings with temperature compensation to account for oxygen solubility variations.
5. [WIDE APPLICATION] Versatile meter suitable for various fields including aquariums, pools, aquaculture, scientific research, and more.

Spec:
Item Type: Dissolved Oxygen Meter
Material: ABS
Usage: Suitable for Freshwater Aquaculture, Seawater Aquaculture, Swimming Pool, Beverage Factory, Sewage Treatment Plant, Laboratory.
Battery: x 3 (Battery Not Included)
Measuring Range:
Oxygen Concentration (mg/L): 0.0 to 30.0mg/L
Dissolved Oxygen Saturation (%): 0.0 to 300.0%
Temperature: 0.0-40.0℃, 32.0-104.0℉
Resolution:
Oxygen Concentration (mg/l): 0.1mg/L
Dissolved Oxygen Saturation (%): 0.10%
Temperature: 0.1℃, 0.1℉
Accuracy:
Oxygen Concentration (mg/L): ±1.5%F.S
Dissolved Oxygen Saturation (%): ±1.5%F.S
Temperature: ±0.5℃
Calibration Mode: Support One Point or Double Point Automatic Calibration, 0.0% (Oxygen Free Water) or 100.0% (Air)
Response Time: ≤45s (Response at 20℃)
Temperature Compensation Range: Automatic (0 to 40℃)
Altimetric Compensation: None
Battery Level: Low Battery Warning
Shutdown: Auto Power off in 8 Minutes if Not Using It
Use Environment: 0 to 40.0℃ RH Maximum 90%

How to Use:
1. When the product leaves the factory, there is electrolyte in the membrane group, which can be used directly
2. Connect the electrode, press the power button, turn it on, the screen will display mg/L temperature
3. Short press the MODE button to switch between mg/L or %
4. Short press the HOLD button to lock the value, long press the TEMP button to switch between °C or °F
5. Long press the CAL button to calibrate in the air, the screen displays 100.0%, and the calibration is successful after the flashing is completed. If calibrated in deoxygenated water, it will display 0.0%

Package List:
1 x Dissolved Oxygen Meter (Battery Not Included)
1 x Dissolved Oxygen Electrode
6 x Oxygen Membrane Group
1 x User Manual
1 x Dissolved Oxygen Filling Liquid