Description
Great Oak Curated Industrial Equipment:
Part of our industrial collection, selected for durability and performance.
Features & Details
- Bluetooth / USB Data Transfer: Connect via Wi-Fi to our app for real-time water quality monitoring on your mobile, or use USB for data transfer. Our dissolved oxygen meter is ideal for field checks and lab reports, saving you time on data management.
- High Precision: Our dissolved oxygen tester features auto temperature, manual pressure, and salinity compensation, ensuring accurate results in various water conditions. Max Accuracy: ±2% for dissolved oxygen/air saturation and ±32.5°F for temperature
- Easy-to-Read Display: Measuring Range: Dissolved Oxygen: 0.00-50.00 mg/L, Air Saturation: 0.0-500.0%, Temperature: -42.8 to 114.8°F. This DO meter provides a clear and glare-free display for easy data reading, even in bright sunlight.
- IP67 Waterproof: The dissolved oxygen test kit withstands splashes and accidental submersion. Its stable structure ensures reliable operation in humid environments, making it ideal for fieldwork and lab water applications.
- Stores up to 750 data sets with easy recall.
- Features low battery alert and auto-shutoff to extend battery life.
- Tilted back design enables desktop use.
- Audio-feedback buttons ensure a responsive, intuitive experience.
Technical Specifications
| Item Model Number | 9011B |
|---|---|
| Battery Capacity | 750mAh |
| Number of Cells | 2 |
| Dissolved Oxygen Range | 0.00–50.00mg/L |
| Air Saturation Range | 0.0–500.0% |
| Temperature Range | -42.8-114.8°F / 6.0-46.0℃ |
| Temperature Accuracy | ±32.5°F / 0.3°C |
| Pressure Compensation | 600 to 1100 hPa adjustable, default 1013 hPa |
| Salinity Compensation | 0.0 to 40.0g/L adjustable, default 0.0g/L |
| Measurement Data Storage | 750 sets |
| Data Transfer | USB, Bluetooth |
| Working Environment | 32–122°F / 0–50℃, Relative Humidity |
| Product Color | Black |
| Main Unit Shell Material | ABS |
| Electrode Material | Stainless Steel |
| Product Net Weight | 4.1 lbs / 1.85 kg (Including Accessories + Toolbox) |
| Main Unit Dimensions(L x W x H) | 8.5 x 3.1 x 2.2 inch / 217 x 80 x 55 mm |
| Toolbox Dimensions(L x W x H) | 13.8 x 3.5 x 10.8 inch / 350 x 90 x 275 mm |
Detailed Overview
High Precision Dissolved Oxygen Meter


With Bluetooth mode, data syncs instantly to your phone or tablet app, allowing real-time monitoring of curve changes during fieldwork. The USB connection ensures stable, high-speed data transfer in the lab, with data directly imported to your PC for in-depth analysis.


The ultra-clear LCD screen allows easy data reading without glare. Even in direct sunlight, the display of the DO meter remains bright and legible, providing precise readings when you need them.


Whether working outdoors in the rain or in shallow water, this dissolved oxygen test kit remains operational, providing reliable performance for all your measuring tasks.


The 13.1 ft long electrode easily reaches deep ponds, wells, or large water tanks. Our dissolved oxygen tester makes fieldwork effortless and allows you to gather precise data with ease.


Our pond oxygen meter is ideal for environmental monitoring, aquaculture, wastewater treatment, and laboratory research. It is particularly suited for professionals and enthusiasts who require accurate dissolved oxygen measurements across diverse water environments.


Note: Great Oak specializes in sourcing high-performance industrial tools. Manufactured by VEVOR.













Verified Customer –
works well & assume tit is accurate