shop/ chemical/ dfrobot dissolved oxygen analog meter kit

Measure Chemical Conditions with a Sensor Made for Embedded Projects

The Analog Dissolved Oxygen Sensor Meter Kit For Arduino Gravity is a chemical sensor module with analog output designed for water quality work, lab projects, and environmental monitoring. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.

Key details include Detection Range: 0~20mg/L; Pressure Range: 0~50PSI; Operating Voltage: 3.3~5.5V.

Important: Most gas and chemical sensors work best after warm-up and calibration. Readings can drift with temperature, humidity, and sensor age.

Why you’ll love it

  • Gravity Analog Sensor Cable x1: Gravity Analog Sensor Cable x1
  • Waterproof Gasket x2: Waterproof Gasket x2
  • Useful spec: 1 year (normal use)
  • Controller output: 0~3.0V
  • Sensing range: 0~20mg/L
  • Power range: 3.3~5.5V

Compare with similar products

Product Sensor style Standout
Analog Dissolved Oxygen Sensor Meter Kit For Arduino Gravity chemical sensor module with analog output Current item
Atlas Scientific Dissolved Oxygen Kit chemical sensor module remote probe format
Atlas Scientific Industrial Dissolved Oxygen Probe dust sensor remote probe format
TDS Sensor Meter Analog for Arduino Gravity TDS sensor with analog output analog output

What you can build

This sensor is a good fit for water test rigs, hydroponics monitors, lab logging, aquarium control, and environmental stations.

Starter bundles

Pair it with an Arduino-compatible board, ESP32, or Raspberry Pi, plus a breadboard and jumper wires for quick setup and testing.

Recommended add-ons

Useful add-ons include calibration solutions, probe holders, and a data logger, depending on how you plan to power, mount, and log the sensor.

Technical specifications

Product Analog Dissolved Oxygen Sensor Meter Kit For Arduino Gravity
Electrode Service Life 1 year (normal use)
Output Signal 0~3.0V
Detection Range 0~20mg/L
Pressure Range 0~50PSI
Operating Voltage 3.3~5.5V
Type Galvanic Probe
Dimension 42mm * 32mm
Cable Length 2 meters

Wiring & usage notes

Connect power and ground, then read the sensor output with an analog-capable input or external ADC. Stable power and a clean ground help reduce noise. Most gas and chemical sensors work best after warm-up and calibration. Readings can drift with temperature, humidity, and sensor age.

What’s in the box

1 × Analog Dissolved Oxygen Sensor Meter Kit For Arduino Gravity

Frequently Asked Questions

What does the Analog Dissolved Oxygen Sensor Meter Kit For Arduino Gravity measure? It is designed to measure dissolved oxygen.
Can I use it with Arduino, ESP32, or Raspberry Pi? Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.
How do I connect this Analog sensor? This sensor gives an analog-style signal, so you read it with an ADC or an analog-capable input.
Does it need calibration? Yes. Chemical and gas sensors usually need warm-up time, calibration, and periodic checking if you want stable readings.
Is it good for prototyping? Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.

Build with this board

// from learn.circuit.rocks

Notes from the bench

// from blog.circuit.rocks

Ask the community

// from forum.circuit.rocks