Water Quality Sensor Series

Water quality sensors can measure a wide range of parameters, including pH level, dissolved oxygen, conductivity, turbidity, temperature, salinity, total dissolved solids (TDS), and various contaminants.

DFRobot offers a wide range of liquid sensors, catering to both lab grade and industrial grade. Our sensors are designed to meet the highest quality standards and provide accurate and reliable measurements. Whether you need a sensor for research purposes or for integrating into industrial systems. Feel free to explore our selection and reach out to our customer service team for any further inquiries.They can be used with Arduino or other microcontrollers for various applications, such as water quality monitoring, hydroponics, aquariums and smart home.

pH Sensor

Grade

Lab Grade

Industrial Grade

Fast response, practical range

High quality, enhanced endurance

Product Name

Gravity: Analog pH Sensor / Meter Kit for Arduino

Gravity: Analog pH Sensor / Meter Pro Kit for Arduino

Figure

SKU

SEN0161

SEN0169

SPECIFICATION

Supply Voltage: 5V Range: pH 0-14

FEATURES

Quick-start pH Meter

Cost-effective pH Meter Pro Kit

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pH Sensor V2

Grade

Lab Grade

Industrial Grade

Fast response, practical range

High quality, enhanced endurance

Product Name

Gravity: Analog pH Sensor/Meter Kit V2

Gravity: Analog Industrial pH Sensor / Meter Pro Kit V2

Figure

SKU

SEN0161-V2

SEN0169-V2

SPECIFICATION

Supply Voltage: 3.3V, 5V Range: pH 0-14

FEATURES

Upgraded circuit, more easy-to-use

Highly suitable for long-term pH monitoring

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EC Sensor K=1

Grade

Lab Grade

Industrial Grade

Fast response, practical range

High quality, enhanced endurance

Product Name

Gravity: Analog Electrical Conductivity Sensor /Meter V2 (K=1)

Gravity: Analog Electrical Conductivity Sensor PRO (K=1)

Figure

SKU

DFR0300

SEN0451

SPECIFICATION

Supply Voltage: 3.3V, 5V Range: 0-20ms/cm

Supply Voltage: 3.3V, 5V Range: 0-2ms/cm

FEATURES

Quick-start EC Meter

All-metal probe, temperature & pressure resistance, more durable

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EC Sensor K=10

Grade

Lab Grade

Fast response, practical range

Product Name

Gravity: Analog Electrical Conductivity Sensor / Meter(K=10)

Figure

SKU

DFR0300-H

SPECIFICATION

Supply Voltage: 3.3V, 5V Range: 10-100ms/cm

FEATURES

Wide range, good for testing various water quality.

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DO Sensor

Grade

Lab Grade

Fast response, practical range

Product Name

Gravity: Analog Dissolved Oxygen Sensor / Meter Kit for Arduino

Figure

SKU

SEN0237-A

SPECIFICATION

Supply Voltage: 3.3V, 5V Range: 0-20mg/L

FEATURES

Great helper for ecological aquaculture

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ORP Sensor

Grade

Lab Grade

Industrial Grade

Fast response, practical range

High quality, enhanced endurance

Product Name

Gravity: Analog ORP Sensor Meter for Arduino

Gravity: Analog Industrial ORP Sensor Meter Pro for Arduino

Figure

SKU

SEN0165

SEN0464

SPECIFICATION

Supply Voltage: 5V Range: -2000mV ~ +2000mV

FEATURES

Combing with other water quality sensors for multi-parameters sensing

Industrial probe, 24-hour monitoring

Add to Cart

Here are some items you might be interested in for liquid sensors：

Project 1. Arduino Project: pH sensor Working, application & Calibration "Water Quality Monitoring"

Introduction: This tutorial is about how to use the pH sensor with Arduino and find the pH value of different liquids “Water, Milk and Cold rink”, and display the pH value on the serial monitor.

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.

Project 3. 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.

Water Quality PH Sensor & EC Sensor & DO Sensor & ORP Sensor Series