Digital Dissolved Oxygen Meter – 0-30 mg/L DO Tester with IP67 Waterproof Design, ATC & Temperature Detection

Protect water quality with fast, dependable oxygen readings that help you maintain healthier aquatic conditions. This precision handheld tester measures dissolved oxygen concentration, oxygen saturation, and temperature while automatically compensating for temperature changes. Its IP67 waterproof housing provides added protection for demanding dissolved oxygen testing around wet environments. With automatic calibration and responsive measurements, this water quality tester makes routine monitoring more convenient and reliable.

Key Features
• Measures dissolved oxygen from 0–30 mg/L and saturation from 0–300% for versatile water monitoring.
• Automatic temperature compensation helps maintain dependable readings as water temperatures change.
• IP67 waterproof housing provides added protection when working around aquariums, tanks, ponds, and other wet environments.
• Supports one-point and two-point automatic calibration for convenient setup and measurement accuracy.

Why Choose Our Digital Dissolved Oxygen Meter?
Unlike basic testers that provide limited measurements, this meter combines dissolved oxygen concentration, saturation, and temperature monitoring in one compact instrument. Its waterproof construction, automatic temperature compensation, and flexible calibration options provide convenient functionality for regular water testing. The included oxygen electrode and replacement membrane groups make it a practical solution for ongoing monitoring.

Perfect For
Ideal for aquarium owners, aquaculture operations, fish farms, ponds, hydroponic systems, laboratories, water treatment applications, and other environments where dissolved oxygen levels need regular monitoring. It is also useful for users who want to track oxygen saturation and temperature alongside dissolved oxygen concentration.

Product Specifications
• Oxygen Concentration Range: 0.0–30.0 mg/L
• Oxygen Concentration Resolution: 0.1 mg/L
• Oxygen Concentration Accuracy: ±1.5% F.S.
• Oxygen Saturation Range: 0.0–300.0%
• Oxygen Saturation Resolution: 0.1%
• Oxygen Saturation Accuracy: ±1.5% F.S.
• Temperature Range: 32–104°F
• Temperature Resolution: 0.1°F
• Temperature Accuracy: ±0.9°F
• Temperature Compensation: ATC, 32–122°F
• Calibration: One-point or two-point automatic calibration
• Calibration Points: 0.0% and 100.0%
• Response Time: ≤45 sec. at 68°F
• Waterproof Rating: IP67
• Auto Shutoff: Approx. 15 min.
• Operating Environment: 32–104°F, max. 90% RH
• Power Supply: 3 × 1.5V button batteries, not included
• Dimensions: 7.2 × 1.5 × 1.5 in.
• Weight: 2.8 oz

Maintain better control over your water conditions with the Digital Dissolved Oxygen Meter. Its convenient multi-reading design, waterproof construction, and automatic compensation make it a dependable addition to your water-testing equipment.