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Ion Specific Electrode Probe Interface

Ion Specific Electrode Probe Interface

Single-unit price: $18.00 + shipping

Campaign ends when minimum unit count is reached

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Backers: 8

Target icon campaign show

Target: 25

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Funded: 9

Product Details


Ion Specific Electrode Probe Interface

Brand / Manufacturer

universal fire

Product Description

Add the ability to measure pH, ORP, or any mV probe to your Arduino or Raspberry Pi project.

Some quick facts...

  • boards are assembled and tested in-house
  • hardware and software files are open-source
  • designed with simplicity in mind

Why we're better than the other our competitors...

  • just as accurate
  • significantly easier to use
  • all-inclusive system, no need to buy connectors
  • a temperature sensor is available on all the boards

Measure pH or ORP

  • measure pH with temperature compensation
  • measure ORP and Eh
  • read the raw mV output of any ion specific probe
  • read temperature in Celsius/Fahrenheit

What it is

An I2C sensor device that can read any voltage based sensor such as a pH or ORP probe. There are pin headers available to connect a DS18B20 temperature sensor for temperature compensation. The firmware on the device provides two calibration options, single or dual point. The hardware and all firmware/software is open source and available for anyone to modify or improve upon.

Using it

The library to use it is in the Arduino and IDE. A rust implementation for Raspberry Pi is available.

Image of board with ESP32

Example Projects

Here are some Instrucable links to projects using this:

IoT Pool Monitoring using to graph the data
IoT Hydroponics - Using IBM's Watson for graphing and another hydroponic system using

Why GroupGets?

Take advantage of volume pricing and get 10% off the regular price for the board and probes.

External Links

Manufacturer product page

Purchase Information

Unit Deliverable

One interface board.

Unit Price


Campaign Part #



Campaign unsuccessful, ends when minimum unit count reached

Factory Lead Time

One Month Days

Options and Add-Ons

pH Probe


The probe is gel-filled, single-junction, with a plastic body and a one meter cable. Single-use calibration powder in pH 4/7/10 is also included.

pH Probe Image

ORP Probe


A gel-filled, 245 mV potential ORP probe with a platinum disc electrode and a one meter cable.

Temperature Sensor


A DS18B20 waterproof temperature sensor with a one meter cable.

Temperature Sensor

ESP32 Development Board


A 4 megabyte ESP32 Development Board with the BLE interface pre-programmed.


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