DFRobot Gravity - analog ph Pro sensor/meter

Index: DFR-06112 EAN: 5903351243292

The analog pH meter is compatible with Arduino. It has an accuracy of +/- 0.1 pH which is sufficient in most cases. The Pro version has the industrial probe that can be immersed in water even for a 1 year.

DFRobot Gravity - analog ph Pro sensor/meter
€56.50 tax excl.
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Manufacturer: DFRobot

Description of DFRobot Gravity - analog ph Pro sensor/meter

The analog pH meter compatible with Arduino. It allows you to measure water quality. It has an accuracy of +/- 0.1 pH which is sufficient in most cases. It is equipped with LED, BNC connector and PH2.0 interface. The kit includes a cable adapted toDFRobot IO Expansion Shield. The Pro version has the industrial probe that can be immersed in water even for 1 year.


The pH electrode is made of glass of low impedance. It provides quick response time and excellent thermal stability. It works in the range from 0 pH to 14 pH. The applied electrolyte jet is immune on contamination. The PTFE membrane not clogging itself too quickly so the sensor is suitable for long-term projects.



The product is compatible with Arduino

Sample code and detailed information can be found inthe user guide.


The sensor works in conjunction with any microcontroller that has analog inputs, includingArduino. To read data, simply connect the power and the output pin for any analog input of the microcontroller and read the measurement result.


Example of connecting the sensor.


Specification: DFRobot Gravity - analog ph Pro sensor/meter

  • Supply voltage: 5 V
  • Measuring range: from 0 pH to 14 pH
  • Operating temperature: 0 °C to 60 °C
  • Accuracy: +/- 0.1 pH
  • Response time: up to 1 minute
  • PH sensor with BNC connector
  • Interface PH2.0
  • Gain adjustment with potentiometer
  • Cable for connection withDFRobot IO Expansion Shield
  • Board sizes: 43 x 32 mm


Package width 26 cm
Package height 5.5 cm
Package depth 8.5 cm
Package weight 0.307 kg

Same-day shipping

  • Crediting the payment for an order on business day from Tuesday to Friday up until 1:00 PM o'clock, and on Mondays up until 12:00 PM, means the order will be shipped on the same day!
  • All packages are being delivered by GLS Group courier and covered with insurance up to 1200 EUR.
  • You will receive a link to track your package and monitor the progress of delivery as soon as it is shipped.

Terms of delivery 

GLS - zone 1

Austria, Belgium, Croatia, The Czech Republic, Denmark, Germany, Netherlands, Poland, Slovakia 

  • Delivery time: 2-4 days
  • Delivery cost: from 4.18 EUR
  • Insurance: 1200 EUR
GLS - zone 2

Bulgaria, Estonia, France, Hungary, Italy, Latvia, Lithuania, Luxembourg, Portugal, Romania, San Marino, Slovenia

  • Delivery time: 2-5 days
  • Delivery cost: from 5.35 EUR
  • Insurance: 1200 EUR
GLS - zone 3

Finland, Greece, Ireland, Spain, Sweden 

  • Delivery time: 2-7 days
  • Delivery cost: from 7.67 EUR
  • Insurance: 1200 EUR

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