Understanding the DFRobot Conductivity Sensor: A Comprehensive Guide

DFRobot conductivity sensor is a versatile and reliable tool used in various industries for measuring the electrical conductivity of a solution. This sensor is designed to provide accurate and precise measurements, making it an essential component in water quality monitoring, chemical analysis, and environmental research.

One of the key features of the DFRobot conductivity sensor is its high sensitivity and wide measurement range. This sensor can detect conductivity levels ranging from 0 to 20,000 μS/cm, allowing users to measure a wide range of solutions with different conductivity levels. This makes it suitable for a variety of applications, from monitoring the purity of drinking water to analyzing the conductivity of industrial wastewater.

The DFRobot conductivity sensor is easy to use and can be easily integrated into existing systems. It comes with a simple interface that allows users to connect it to a microcontroller or data logger for real-time monitoring and data collection. The sensor also comes with calibration solutions and instructions, making it easy for users to calibrate and maintain the accuracy of their measurements.

In addition to its high sensitivity and wide measurement range, the DFRobot conductivity sensor is also highly durable and reliable. It is made of high-quality materials that are resistant to corrosion and can withstand harsh environmental conditions. This makes it suitable for long-term use in outdoor applications or industrial settings where the sensor may be exposed to chemicals or extreme temperatures.

Model No. CIT-8800 Inductive Conductivity / Concentration Online Controller
Measurement range Conductivity 0.00μS/cm ~ 2000mS/cm
Concentration 1.NaOH,(0-15)% or(25-50)%;
2.HNO3(note the Corrosion resistance of the sensor)(0-25)% or(36-82)%;
3.User-defined concentration curves.
TDS 0.00ppm~1000ppt
Temp. (0.0 ~ 120.0)℃
Resolution Conductivity 0.01μS/cm
Concentration 0.01%
TDS 0.01ppm
Temp. 0.1℃
Accuracy Conductivity 0μS/cm ~1000μS/cm ±10μS/cm
1 mS/cm~500 mS/cm ±1.0%
500mS/cm~2000 mS/cm ±1.0%
TDS 1.5 level
Temp. ±0.5℃
Temp. compensation element Pt1000
range (0.0~120.0)℃ linear compensation
(4~20)mA Current output channels Double channels
features Isolated, adjustable, reversible, 4-20MA output, instruments/ transmitter mode.
Loop resistance 400Ω(Max),DC 24V
Resolution ±0.1mA
Control contact Channels Triple channels
Contact Photoelectric relay output
Programmable Programmable ( temperature 、conductivity/concentration/TDS、timing)output
Features Could set temperature、conductivity/concentration/TDS、 timing NO/NC/ PID selection
Resistance load 50mA(Max),AC/DC 30V(Max)
Data communication RS485,MODBUS protocol
Power supply DC 24V±4V
Consumption <5.5W
Working environment Temperature:(0~50)℃ Relative Humidity:≤85%RH(non- condensing )
Storage Temperature:(-20~60)℃ Relative Humidity:≤85%RH(non- condensing)
Protection level IP65(with rear cover)
Outline dimension 96mm×96 mm×94mm (H×W×D)
Hole dimension 91mm×91mm(H×W)
Installation Panel mounted , fast installation

The DFRobot conductivity sensor is also highly versatile and can be used in a wide range of applications. In addition to water quality monitoring and chemical analysis, this sensor can also be used in aquaculture, hydroponics, and soil science. Its ability to measure conductivity levels accurately and reliably makes it an essential tool for researchers, scientists, and engineers working in these fields.

ROS-2015 Single Stage Reverse Osmosis Program Controller
  1.water source water tank without water protection
  2. low pressure protection
Acquisition signal 3.pure water tank full protection
  4.high pressure protection
  5.external control(manual/automatic switch)
  1.water inlet valve
Output control 2. flush valve
  3. low pressure pump
  4.high pressure pump
  AC220v±10% 50/60Hz
Power supply AC110v±10% 50/60Hz
Control output 5A/250V AC
Flush the way Low pressure flush/ high pressure flush
Relative humidity ≤85%
Ambient temperature 0~50℃
Hole Size 45*92mm(high*wide)
Installation method The embedded
Display usage Standard RO process flow chart, supporting LED dynamic display
Process control When the system is turned on for the first time,the system performs 30s membrane flushing, 
instructions and flush 10s when the machine is running and the water tank is full. Run continuously for 3h
  or stand by for 3h when the water is full, automatically intervene in flushing for 10s

One of the key advantages of the DFRobot conductivity sensor is its affordability. Compared to other conductivity sensors on the market, the DFRobot sensor offers a cost-effective solution for measuring conductivity levels in various solutions. This makes it an ideal choice for budget-conscious users who require a reliable and accurate sensor for their applications.


Overall, the DFRobot conductivity sensor is a versatile and reliable tool that offers high sensitivity, wide measurement range, durability, and affordability. Whether you are monitoring water quality, analyzing chemical solutions, or conducting research in environmental science, this sensor is an essential component that can help you achieve accurate and precise measurements. With its easy-to-use interface and robust design, the DFRobot conductivity sensor is a valuable asset for any laboratory or field application.


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