EZO™ ORP Circuit

€33,95
Article number: Part # EZO-ORP
Availability: In stock (1)

Connect your ORP probe to this circuit to create a workable signal for your microprocessor using UART or I2C protocol.
Works with any brand and type of ORP sensor.



ORP stands for oxidation/reduction potential. Oxidation is the loss of electrons and reduction is the gain of electrons. The output of the probe is represented in millivolts and can be positive or negative.

Just like a pH probe measures hydrogen ion activity in a liquid; an ORP probe measures electron activity in a liquid. The ORP readings represents how strongly electrons are transferred to or from substances in a liquid. Keeping in mind that the readings do not indicate the amount of electrons available for transfer.

Reads ORP
Range -1019.9mV − 1019.9mV
Accuracy +/– 1mV
Response time 1 reading per sec
Supported probes Any type & brand
Calibration Single point
Temp. compensation N/A
Data protocol UART & I2C
Default I2C address 98 (0x62)
Operating voltage 3.3V − 5V
Data format ASCII

Circuit dimensions
13.97mm x 20.16mm (0.55" x 0.79")
Weight: 1.86 grams

datasheet EZO circuit
datasheet wiring diagram


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