Description
Reviews
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Interface Type | Analog Output / I2C |
| Supply Voltage | 5V DC |
| pH Measurement Range | 0-14 pH |
| Measurement Accuracy | ±0.1 pH |
| Response Time | ≤1 Minute |
| Operating Temperature | 0°C to 60°C |
| Probe Model | E-201 Glass Electrode |
| Probe Cable Length | 1 Meter |
| PCB Dimensions | 42mm x 32mm |
| Compatibility | Arduino, Raspberry Pi, STM32 |
Anonymous
Apr 12, 2026
Rating: 5/5
Perfect for my hydroponics setup
This module works exactly as described. The temperature compensation helps stabilize readings in my nutrient reservoir. Easy to wire up with my Arduino.
Anonymous
Mar 15, 2026
Rating: 4/5
Good sensor, requires calibration
The hardware is solid. Just remember you need standard buffer solutions to calibrate it before first use. Once calibrated, it is quite accurate.
Anonymous
Mar 04, 2026
Rating: 4/5
Fast shipping and well packaged
Arrived quickly. The probe was protected well in bubble wrap. Code examples provided online were helpful to get started.
Anonymous
Feb 18, 2026
Rating: 5/5
Reliable water quality monitoring
Using this for my aquarium project. It has been running for a month without drift. The probe seems durable.
Anonymous
Jan 29, 2026
Rating: 5/5
Great value for money
Compared to other industrial sensors, this is very affordable for hobbyists. The filtering algorithm reduces noise significantly.
Q: Is this compatible with 3.3V microcontrollers?
A: Yes, the module can operate with 3.3V logic, but please ensure the power supply meets the probe requirements.
Q: Is there a library available for Arduino?
A: Yes, you can find open-source libraries on GitHub that support this specific pH sensor module.
Q: Do I need to buy calibration solutions separately?
A: Yes, calibration buffers (pH 4.01 and 6.86) are not included and should be purchased separately for accurate readings.
Q: Can the entire module be submerged in water?
A: No, only the pH probe head is waterproof. The circuit board must remain dry to prevent damage.
Q: What is the expected lifespan of the probe?
A: With proper storage and maintenance, the E-201 probe typically lasts 1 to 2 years depending on usage frequency.
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