EZO-DO Datasheet.pdf

0.01-100+ mg/L, 0.1-400+ % saturation
Accuracy: +/- 0.05 mg/L
Response time: 1 reading per second
Supported probes: Any galvanic probe, 1 or 2 point calibration
Data protocol: UART & I2C, default I2C address: 97 (0x61)
Operating voltage: 3.3V-5V
Data format: ASCII
Compensation: Temperature, salinity, and pressure

Technical Details

Power consumption: 0.66 mA (max), 0.3 mA (standby), 13.5 mA (LED on)
Absolute max ratings: -65 °C to 125 °C (storage), -40 °C to 85 °C (operational)
Circuit dimensions: 13.97mm x 20.16mm x 8.38mm
Operating principle: Galvanic dissolved oxygen probe with PTFE membrane, anode, and cathode

Probe Characteristics

Flow dependence: Requires approximately 60 ml/min water movement for accurate readings
Output: mV, proportional to oxygen concentration
Calibration: 1 or 2 point calibration supported

Communication Modes

UART mode: Sending commands, receiving data, and LED control
I2C mode: Sending commands, requesting data, and LED control
* Available commands: Calibration, export/import calibration, temperature/salinity/pressure compensation, and more