This is Liquid pH Value Detection Sensor for Arduino.

The pH stands for the power of hydrogen, which is a measurement of the hydrogen ion concentration in the body. This is used in Water quality testing and Aquaculture. The total pH scale ranges from 1 to 14, with 7 considered to be neutral. A pH less than 7 is said to be acidic and solutions with a pH greater than 7 are basic or alkaline.

The PH electrode has a single cylinder that allows direct connection to the input terminal of a pH meter, controller, or any pH device which has a BNC input terminal. The pH electrode probe is accurate and reliable that can give almost instantaneous readings.

Specification:

• Module Power : 5.00V
• Module Size : 43 x 32mm(1.69x1.26")
• Measuring Range :0 - 14PH
• Measuring Temperature: 0 - 60 ?
• Accuracy : ± 0.1pH (25 ?)
• Response Time : ≤ 1min
• pH Sensor with BNC Connector
• pH2.0 Interface ( 3 foot patch )
• Gain Adjustment Potentiometer
• Power Indicator LED