Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Measurement Range	0 - 14 pH
Operating Voltage	5V DC
Output Signal	Analog (0-5V)
Electrode Type	Glass Bulb with BNC Connector
Response Time	< 60 seconds
Calibration Solutions Included	pH 4.01 and pH 6.86
Compatible Microcontrollers	Arduino, Raspberry Pi, ESP32
Operating Temperature	0°C to 60°C
Cable Length	1.5 meters
Application Areas	Hydroponics, Aquariums, Water Quality Testing

6 reviews

Anonymous

Mar 28, 2026

Rating: 5/5

Reliable for educational purposes

We bought several of these for our high school science lab. They hold up well to student handling and provide data accurate enough for our experiments. The price point makes it accessible for schools.

Anonymous

Mar 15, 2026

Rating: 5/5

Excellent documentation and support

As someone new to pH sensing, I appreciated the clear wiring diagram and sample code provided. The module integrates easily into existing IoT dashboards. Highly recommended for students and makers.

Anonymous

Mar 14, 2026

Rating: 4/5

Solid build quality

The BNC connector is secure, and the glass electrode seems durable. It handles continuous immersion in nutrient solutions well. Just remember to store the electrode properly when not in use to maintain longevity.

Anonymous

Mar 04, 2026

Rating: 3/5

Works but requires patience

The sensor works as advertised, but getting stable readings takes some time and careful shielding of the analog wires to reduce noise. Once set up correctly, it performs well.

Anonymous

Mar 04, 2026

Rating: 4/5

Good accuracy after calibration

Initially, the readings were a bit off, but once I followed the two-point calibration guide carefully, it became very accurate. The electrode feels sturdy, though the cable could be slightly longer for larger tanks.

Anonymous

Mar 02, 2026

Rating: 5/5

Perfect for my hydroponic setup

This sensor module works flawlessly with my Arduino controller. The calibration process was straightforward using the included solutions, and the readings are consistent with my standalone meter. Great value for DIY projects.

5 FAQ

Q: Is this waterproof or just the electrode?

A: Only the glass electrode probe is designed for submersion. The circuit board module itself is not waterproof and should be kept dry or housed in a protective enclosure.

Q: How often does the electrode need to be recalibrated?

A: For best results, we recommend calibrating the sensor every 2-4 weeks depending on usage frequency. If high precision is required, daily calibration before use is advisable.

Q: Can this sensor measure pH in hot water above 60°C?

A: No, the operating temperature range is specified as 0°C to 60°C. Exposing the sensor to temperatures higher than this may damage the electrode or affect accuracy.

Q: Does this kit come with storage solution for the electrode?

A: The kit includes calibration solutions (pH 4.01 and 6.86). For long-term storage, we recommend purchasing a separate 3M KCl storage solution to keep the glass bulb hydrated.

Q: Is the output digital or analog?

A: The module provides an analog output signal (0-5V) which corresponds to the pH value. You will need an ADC (Analog-to-Digital Converter) on your microcontroller to read the data.

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