Digital Dissolved Oxygen Meter 0.0-40.0 Mg/L Waterproof ATC 0.0-300.0% DO Tester DO9100 Water Quality Oxygen Detector

Good luck with your favorite purchasesDigital Dissolved Oxygen Meter 0.0-30.0 Mg/L Waterproof ATC 0.0-300.0% DO Tester DO9100 Water Quality Oxygen Detector 1.DO9100 is a precision meter for measuring dissolved oxygen and temperature. The built-in microcomputer processor can calculate and compensate all measurement data related to dissolved oxygen and temperature. The shell of this instrument is waterproof, and the waterproof grade: IP672. This dissolved oxygen meter has two measurement units: % and mg/L.3.The dissolved oxygen probe is a film with a polarographic sensor and a thermistor for temperature measurement and temperature compensation. The permeable film separates the measured solution from the sensing electrode, but allows oxygen to pass through the film to react , The solubility can be measured. 1.Measuring range:Oxygen concentration (mg/L): 0.0-30. 0 mg/LDissolved oxygen saturation (%): 0.0-300. 0%Temperature: 0-40°C; 32-104°F2. Resolution:Oxygen concentration (mg/L): 0.1 mg/LDissolved oxygen saturation (%): 0.1%Temperature: 0, 1°C; 0.1°F3. Accuracy:Oxygen concentration (mg/L): ±1.5% °F. S.Dissolved oxygen saturation (%): ±1.5%F. S.Temperature: ±0.5℃4. Calibration mode: support single-point or dual-point automatic calibration, namely zero point or automatic 100% calibration in the air5. Response time: ≤45s (fast response at 20℃)6. Temperature Compensation: ATC (0-50℃)7. Battery power: low battery warning8. Height compensation: none9. Backlight:  backlight is optional10. Shut down: automatically shut down for about 15 minutes11. Power supply mode: 3*1. 5V button battery (not included)12. Use environment: 0-40℃ (32-104°F);RH max 90%13. Dimensions and weight: 183*37*37mm (7.2*1.5*1.5in)/80g

One-point calibration or two-point calibration, any point calibrationOne-point calibration: (satisfying normal use) 0.0% (oxygen-free water) or 100.0% (air).Two-point calibration: 0.0% (oxygen-free water) and 100.0% (air) calibration at the same timeThe instrument calibration is simple, make sure the probe is installed correctly before calibration:1. 100.0%-After the value is stable in the air when the device is turned on, perform calibration. Press and hold the CAL. button for 5 seconds to release the button. The screen flashes 100.0%. After the flashing is completed, the calibration is completed.2. 0.0%-After the value is stable in the anaerobic water under the power-on state, calibrate, press and hold the CAL. button for 5 seconds to release the button, the screen flashes 0.0%, the flashing is completed, the calibration is completed.

1 x host1 x dissolved oxygen electrode3 x Dissolved oxygen membrane group1 x 1 manual