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Optical dissolved oxygen meter with compact luminescent sensor
Slim DO electrode fits into narrow openings like wine or sake bottles for direct oxygen testing
Optical DO sensor with anti-collision cap, stable measurement without oxygen consumption or frequent calibration
Large backlit LCD screen of portable DO meter
Backlit LCD showing historical dissolved oxygen and temperature readings with 99-group memory storage
Complete portable DO meter kit with durable carrying case, sensor, batteries
Dissolved oxygen meter used in aquaculture, wastewater treatment, hydroponics, wine fermentation, and environmental monitoring
  1. Optical dissolved oxygen meter with compact luminescent sensor
  2. Slim DO electrode fits into narrow openings like wine or sake bottles for direct oxygen testing
  3. Optical DO sensor with anti-collision cap, stable measurement without oxygen consumption or frequent calibration
  4. Large backlit LCD screen of portable DO meter
  5. Backlit LCD showing historical dissolved oxygen and temperature readings with 99-group memory storage
  6. Complete portable DO meter kit with durable carrying case, sensor, batteries
  7. Dissolved oxygen meter used in aquaculture, wastewater treatment, hydroponics, wine fermentation, and environmental monitoring

Economic Portable Optical Dissolved Oxygen Meter

The L111D03 dissolved oxygen meter features an optical dissolved oxygen sensor that eliminates frequent calibration and electrolyte replacement, and unaffected by common interferences such as H2S, heavy metals, or grease, ensuring stable and reliable readings in challenging environments. The protective anti-collision cap and reinforced design extend the lifespan of dissolved oxygen sensor, Automatic temperature, and Manual salinity, atmospheric pressure compensation ensure accuracy in diverse water conditions, making the L111D03 dissolved oxygen meter ideal for aquaculture, environmental monitoring.
SKU: L111D03 Categories: , , , Tag:

• Optical dissolved oxygen sensor eliminates polarization and electrolyte refills, reducing maintenance.
• Resistant to interference from sulfides (H2S), heavy metals, and grease.
• Anti-collision cap protects sensor from damage, ideal for rough environments.
• Compact DO probe (100mm length, 20mm tip) ideal for small-volume samples.
• Automatic temperature, and manual salinity / pressure compensation for reliable readings.
• Memory capacity for 99 historical measurement records.
• Easy-to-read 128×64 backlit LCD with numerical and graphical displays.
• Easy calibration with automatic air-saturation.
• Powered by three AAA batteries, and auto-off after 30 minutes.
• Widely used in aquaculture, environmental monitoring, and water treatment.

ParameterSpecification
Dissolved Oxygen Measuring Range0.0 to 15.0 mg/L; 0 to 119.9%
Dissolved Oxygen Resolution0.1 mg/L
Dissolved Oxygen Accuracy±3.0% F.S
Dissolved Oxygen Calibration100% air saturation
Temperature Measuring Range0.0 to 50.0°C
Temperature Resolution0.1°C
Temperature Accuracy±0.5°C
Temperature Unit Conversion°C / °F switchable
Data Recording99 sets (Manual)
Salinity Compensation0 to 42 ppt (Manual)
Altitude Compensation0 to 1000m (Manual)
Temperature Compensation0.0 to 50.0°C (Auto)
Auto Shut-offAfter 1 hour of no operation
LCD Size38 × 54 mm
BacklightSupported
Probe Cable LengthApprox. 3.5 m (with probe)
Power Supply4 × AAA batteries
Product Dimensions70 × 30 × 169 mm

Specifications are subject to change without prior notice.

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