Analog PH Sensor Module Kit with PH Electrode Probe

The Analog PH Sensor Module Kit measures pH (the scale from 0 to 14 that tells you how acidic or alkaline a liquid is) using a glass electrode probe (a sealed glass-tip sensor that generates a voltage based on hydrogen ion concentration in the liquid). The analog ph sensor module outputs a voltage through the BNC connector (a standard lab connector) on the amplifier board, which your microcontroller reads through an analog pin. It covers the full pH range from 0 to 14 and reaches a settled reading within 1 minute.

The analog ph sensor kit with ph probe achieves ±0.01 pH accuracy, which is tighter than most entry-level pH sensors. One non-obvious detail — the glass pH electrode ages over time. Storing it dry between uses shortens its working life noticeably. Keep the electrode tip wet in a storage solution or plain water when not in use. The honest limitation is calibration — the module requires two-point calibration (adjusting output at pH 4.0 and pH 7.0 buffer solutions) before use. Without calibration, readings can drift by 0.5 pH or more. The input supply voltage is 5V plus or minus 0.2V, so regulated 5V from an Arduino power pin is the correct supply.

The analog ph probe connects to Arduino IDE, PlatformIO, and Python environments through a standard analog pin. Engineers make hydroponics project, water quality index and researchers all use it regularly. To start, calibrate with buffer solutions, connect the BNC probe, and read the analog voltage. StemVolt supplies this kit with the probe, BNC cable, and amplifier board in one package.

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Features:

• Accuracy at ±0.01 pH gives precise measurement for scientific experiments and lab reports
• Response time within 1 minute allows quick settled readings without extended electrode soak time
• Input supply voltage of 5V DC plus or minus 0.2V connects directly to standard Arduino power rail
• ph sensor arduino compatible analog output maps pH to a readable voltage on any ADC input pin

Technical specifications:

Applications:

• Hydroponics monitor uses this sensor to check nutrient solution pH daily and adjust dosing
• School chemistry lab project uses this to measure pH of household liquids and record results
• Analog PH Sensor Module Kit reads aquarium water pH and triggers an alert when levels go out of range
• Biomedical experiment reads saliva or urine pH using the probe and plots readings on a laptop serial graph

Package includes:

• 1 x Analog PH Sensor Module Kit