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

Item number 59443 Brand DFRobot Model SEN0451 Share Write a review
Gravity: Analog Electrical Conductivity Sensor PRO (K=1)


Conductivity is the inverse of an object's resistivity and indicates a material's capacity to conduct electrical current. In liquids, conductivity measures a solution's ability to transmit electricity, serving as an indicator of water quality by reflecting its dissolved content or salinity.

The DFRobot Gravity: Analog Electrical Conductivity Sensor PRO (K=1) is specifically designed to assess conductivity in water-based solutions, making it invaluable in hydroponics, aquaculture, environmental water testing, and more.

As an advanced version of the standard analog electrical conductivity meter, this PRO model boasts enhanced probe durability, suitable for round-the-clock conductivity monitoring. It also incorporates a PT1000 platinum resistance thermometer for easy temperature-compensated measurements.

Supporting a wide voltage input range of 3-5V, it is compatible with both 5V and 3.3V control boards. The output signal undergoes hardware filtering to minimize jitter. The AC signal excitation source effectively mitigates polarization effects, enhancing accuracy and extending probe lifespan. The package includes practical items like a calibration solution, accessory kit, and waterproof connector, facilitating quick setup of a conductivity monitoring platform.

With this product, a compatible controller board like Arduino, and the provided software library, you can effortlessly create a plug-and-play electrical conductivity meter—no soldering needed. DFRobot offers a range of water quality sensors with standardized sizes and interfaces, catering to diverse water quality testing needs and DIY multi-parameter water quality testers.

This industrial-grade probe is designed for long-term immersion in liquids. For higher accuracy or broader range, consider the laboratory-grade probe (Gravity: Analog Electrical Conductivity Sensor/Meter V2 (K=1)).


  • Easier to measure the compensated temperature data
  • Plug-and-play, no solder required


  • Hydroponics
  • Aquaculture
  • Environmental water detection


  • Supply Voltage: 3.3-5.0V
  • Output Signal: 0-3V
  • Probe Type: Industrial Grade
  • Cell Constant: K=1
  • Temperature Detector: PT1000 platinum resistance thermometer
  • Maximum Range: 1-2200μs/cm
  • Practical Range: 100-2000μs/cm
  • Operating Temperature: 0-50℃ (non-freezing)
  • Pressure Resistant: 0.5MPa
  • Waterproof Level: IP68
  • Cable Length: 5m


Shipping list

  • Electrical Conductivity Probe x1
  • Electrical Conductivity Signal Conversion Board (Industrial Grade) x1
  • PT1000 RTD Signal Conversion Board x1
  • Gravity Sensor Cable x2
  • Waterproof Joint x1
  • Waterproof Aviation Connector x1
  • Electrical Conductivity Calibration Standard Solution 1413µs/cm x4
  • Nylon Pillar Screws Kit x1


Brand information
Brand DFRobot
€ 228,70€ 189,00 Excl. VAT (NL)
Out of stock In stock with supplier
Delivered in 5 to 10 days
Show volume discounts Free shipping! (NL) 30 days cooling-off Excellent service

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