Gravity Analog Dissolved Oxygen Sensor / Meter Kit for Arduino

The Gravity Analog Dissolved Oxygen Sensor Kit for Arduino is an essential tool for water quality analysis in applications like aquaculture, environmental monitoring, and research. Featuring a galvanic probe, it eliminates polarization time and provides fast and reliable dissolved oxygen readings. The plug-and-play signal converter board operates at 3.3-5.5V, making it compatible with popular microcontrollers like Arduino, ESP32, and Raspberry Pi. With replaceable membrane caps and filling solution, the sensor is cost-effective and easy to maintain. This kit ensures precise measurements and helps maintain optimal water quality for aquatic life. Featured By RoboticsBD.

Product Images are shown for illustrative purposes only and may differ from the actual product.

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Features:

1. Galvanic Probe: Requires no polarization time, providing instant availability.
2. Replaceable Components: Membrane cap and filling solution are replaceable, reducing maintenance costs.
3. Wide Compatibility: Works with Arduino, ESP32, Raspberry Pi, and other microcontrollers.
4. Easy Integration: Gravity interface for plug-and-play setup.
5. Durable Design: Probe has a service life of up to one year with proper use and maintenance.
6. Accurate Measurements: Provides reliable dissolved oxygen readings for water quality assessment.

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Applications:

1. Aquaculture: Monitor dissolved oxygen to ensure optimal conditions for aquatic life.
2. Environmental Monitoring: Assess water quality in natural and industrial settings.
3. Hydroponic Gardening: Maintain water quality for plant growth.
4. Scientific Research: Conduct experiments involving water quality and oxygen levels.
5. Educational Tools: Teach water quality monitoring in classrooms or workshops.

SPECIAL INSTRUCTION: Due to the International Import and Export Policy, the corrosive solution (acid & alkaline solution) cannot be delivered by air transportation. The filling solution is not included in the kit. You have to purchase it from the local shop or deploy the solution by yourself, refer to WiKi FAQ-Q4. It can’t work without a filling solution! Please be cautious with the purchase!

Note

1. The filling solution is 0.5 mol/L NaOH solution. You need to pour it into the membrane cap before use. Please be cautious with the operation because the solution is corrosive. Please wear gloves! If the solution accidentally drops onto the skin, wash your skin with plenty of water immediately.
2. The oxygen permeable membrane in the membrane cap is sensitive and fragile. Be cautious when handling it. Fingernail and other sharp objects should be avoided.
3. The DO sensor will consume a little oxygen during the measurement. Please gently stir the solution and let the oxygen be distributed evenly in the water.

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Please allow 5% measuring deviation due to manual measurement.

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Documentation:

1. Dissolved oxygen sensor Product WIKI

Project 1. Analog Dissolved Oxygen Sensor Tutorial | DIY Arduino D.O. Meter

Introduction: Since measuring the parameter of water quality is a complex task, so measuring the dissolved oxygen in water is also not an easy task. That is why the Dissolved Oxygen Meter (DO Meter) available in the market is very expensive. That is why it is important to make your own Dissolved Oxygen Meter. So the Gravity Analog Dissolved Oxygen Sensor from DFRobot is one of the most popular and best Dissolved Oxygen Sensors that are available in the market.

This project will interface Gravity Analog Dissolved Oxygen Sensor with Arduino Board and 0.96″ OLED Display. Firstly, preparing the DO Sensor by filling the 0.5N Sodium Hydroxide Solution, then preparing the sensor for testing. Once the sensor is prepared, go through the Arduino Dissolved Oxygen Sensor calibration code & calibrate the sensor. And then finally making your own Dissolved Oxygen Meter & display the dissolved Oxygen value in OLED Display.

Project 2. Build KnowFlow: automatic water monitor

KnowFlow is the name of this water quality monitoring device, based on Arduino Uno. It can automatically monitor 5 parameters of water: pH, Temperature, Dissolved Oxygen, Electronic Conductivity, ORP.

Central Control Unit: Arduino Uno (DFRobot Bluno in this case) and Expansion Shield (DFRobot Expansion Shield V7.1 in this case)

Water Sensors: pH (pH probe and pH circuit board); EC (EC probe and EC circuit board); ORP (ORP probe and ORP circuit board); Temperature (temperature probe and temperature circuit board); Dissolved Oxygen (DO probe, BNC and circuit board); real time clock circuit board

Data Storage: Micro-SD module, Micro SD card

Fit and fix: mounting plate, water proof box( 200mm_150mm_75mm), water proof joint

Other parts: Cables (Wires), bread board, bolts and nuts, screws, battery, double-sided adhesive, write on tape, small wrench, spiral cable wrap

Project 3. Calibrated Dissolved Oxygen Meter

Introduction: Are you working on a aquaponics or hydroponics project? Or you simply have a fish tank and want your fish to be happy? If yes, you'll probably need a way to measure dissolved Oxygen level.

Connection Diagram: 

Package Includes:

1 x Gravity Analog Dissolved Oxygen Sensor / Meter Kit for Arduino

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