An Atlas Scientific pH sensor is an industrial- and lab-grade probe designed for embedded electronics and automation. It works by measuring the electrical potential of hydrogen ions in a liquid and pairs a specialized sensing probe with an intelligent circuit board to provide accurate, continuous pH readings.
Key Specifications
- pH Range: 0–14 (Consumer grades typically range from 2–13)
- Accuracy: ± 0.002 (Lab Grade) to ± 0.1 (Consumer Grade)
- Data Protocol: UART and I2C
- Speed: 95% response in 1 second
Typical Uses
Because of their high accuracy and durability, they are widely used in hydroponics, aquaculture, water treatment facilities, and environmental testing.
Required Components
To build a functioning system, you generally need three core parts:
- The Probe: The physical glass or consumer-grade electrode placed in the water.
- The EZO™ Circuit: A small microcomputer that interprets the probe's raw analog voltage and outputs a digital pH value.
- Calibration Solutions: Known pH buffers (typically pH 4, 7, and 10) required to calibrate the sensor for maximum accuracy.
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