Description
This device is suitable to take pH level measurement in moist soil and solution. It is not as fragile and required less maintenance compared to glass probe sensor. Internally, an instrument amplifier is use to amplify the small voltage potential develop across the probe and output an analog value varied by the strength of pH level. A basic detection will cause the output to move towards lower value and an acidic detection will move output to higher value. The output can be adjusted to swing into negative voltage or to near zero which is suitable for direct microcontroller interface. The probe is more sensitive in acidic condition.

Details
Type: Metal - Metal oxide Electrode probe
Adjustable Gain and Offset
pH range : 3 (acidic) to 10(basic) , 7 (neutral). range of detection may vary slightly.

Wire connection
White line - +5V
Gray line - Analog output
Black line - Gnd

Maintenance
Rinse and dry the electrode before placing into storage. Prolong deployment in soil or solution may cause corrosion to electrode.