Analog Dissolved Oxygen Sensor Kit With Galvanic Probe No Polarization Instant Read DO Meter 0 To 20 Mg Per Liter For Arduino ESP32 And Raspberry Pi Water Quality Monitor For Aquaculture And IoT

Single-Unit Analog DO Sensor Kit with Galvanic Probe for IoT
✔️ 3.3-5.5V supply, 0-20 mg/L DO range, gravity analog output

This open-source dissolved oxygen sensor kit uses a galvanic probe for fast, polarization-free readings. It’s designed for Arduino, ESP32, and Raspberry Pi projects, making it ideal for DIY aquariums, small-scale aquaculture, and IoT water-quality monitors.

✅ Detection range: 0-20 mg/L
✅ Response time: up to 90 seconds to 98% at 25°C
✅ Galvanic probe with replaceable membrane cap and filling solution
✅ Wide operating voltage 3.3-5.5V; 0-3.0V analog output via Gravity interface
✅ Cable length: 2 m (2000 mm, 78.7 in); probe connector: BNC
✅ Electrode life: about 1 year; maintenance: membrane cap + filling solution replacement
✅ Note: filling solution (0.5 mol/L NaOH) not included; purchase locally

💡 What is an analog dissolved oxygen sensor kit used for in water quality monitoring?

This handy setup helps monitor oxygen levels to protect aquatic life and optimize water quality in DIY and educational projects.

- Use with Arduino, ESP32, Raspberry Pi for real-time DO readouts
- Calibrate at setup and periodically to maintain accuracy across temperatures
- Replace membranes and filling solution to reduce long-term costs
- Handy for home reef tanks, small farms, and STEM learning environments