Description:

Connect any off-the-shelve conductivity probe to your microprocessor that supports UART or I2C. Full range pH reading from 0.07 − 500,000+ μS/cm with an accuracy of +/ – 2%. You can connect this part to the Tentacle mini or Tentacle board or the Carrier Board. Supported conductivity probes in the range of K 0.1 – K 10, and any brand works fine.

This circuit can read / measure:

Conductivity in μS/cm
Total dissolved solids in ppm
Salinity in PSU (ppt) 0.00 – 42.00
Specific gravity (sea water only) in 1.00 – 1.300

Specifications:

• Conductivity range: 0.07 − 500,000+ μS/cm
• Accuracy: +/ – 2%
• Response time: 1 reading per sec
• Supported Probes: K 0.1 – K 10 any brand
• Calibration: 2 or 3 point
• Temperature compensation: Yes
• Data protocol: UART & I2C
• Default I2C address: 100 (0x64)
• Operating Voltage: 3.3V − 5V
• Data format: ASCII
• Dimension: 13.97mm x 20.16mm (0.55" x 0.79")
• Weight: 1.77 grams

Resources:

Manufacturers website

EC_EZO_Datasheet.pdf