Product Introduction: DFRobot SEN0161 Analog pH Sensor Module
The DFRobot SEN0161 Analog pH Sensor Module is a high-quality and reliable pH measurement solution designed for water quality monitoring and environmental testing. Engineered for compatibility with microcontrollers such as Arduino, this module enables users to conveniently measure the acidity or alkalinity of a solution with high accuracy and stability.
The SEN0161 features a BNC connector and a pH probe, providing a simple plug-and-play interface. Its onboard signal conditioning circuit converts the high-impedance analog signal from the probe into a voltage range suitable for microcontroller ADC inputs. With a wide measurement range of 0–14 pH and an accuracy of ±0.1 pH (25°C), it is ideal for a range of applications including hydroponics, aquaculture, and laboratory experiments.
The module includes potentiometers for calibration and supports both 3.3V and 5V systems, making it a flexible and essential component for DIY makers, students, and professionals alike.
Product Description – DFRobot SEN0161 Analog pH Sensor Module
The DFRobot SEN0161 Analog pH Sensor Module is a user-friendly and cost-effective solution for measuring the pH value of liquids. Designed specifically for microcontroller platforms such as Arduino, this sensor module allows developers, students, and researchers to easily integrate accurate pH monitoring into their projects.
Equipped with a high-quality pH probe and a signal conditioning circuit, the module provides stable and reliable analog voltage output corresponding to the pH level of the tested solution. It features a standard BNC connector for easy probe connection and includes a potentiometer for manual calibration, ensuring accurate readings over time.
The SEN0161 supports a wide detection range of 0–14 pH, making it suitable for various applications such as environmental monitoring, agricultural projects (e.g., hydroponics or aquaponics), water treatment systems, and chemistry labs. Its compatibility with both 3.3V and 5V microcontrollers offers excellent versatility across different development boards.
Whether you’re building a water quality testing kit or a smart agriculture system, the DFRobot SEN0161 is an essential tool for accurate and efficient pH measurement.
Key Features:
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Wide pH measurement range: 0 to 14
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Accuracy: ±0.1 pH at 25°C
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BNC connector for secure and easy probe attachment
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Signal conditioning circuit with analog voltage output
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Compatible with 3.3V and 5V microcontrollers (e.g., Arduino, ESP32, Raspberry Pi Pico)
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Easy calibration via onboard potentiometer
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Durable and replaceable pH probe included
Applications:
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Hydroponics and Agriculture – Monitor nutrient solutions to ensure optimal growing conditions.
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Aquariums and Fish Tanks – Maintain the right pH levels to keep aquatic life healthy.
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Environmental Monitoring – Track the acidity of rainwater, rivers, or soil leachate.
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Laboratory Experiments – Conduct chemistry, biology, or environmental science experiments with ease.
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Home Brewing – Keep an eye on pH levels during fermentation and production processes.
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DIY Projects and Maker Activities – Add real-time pH monitoring to your science fair projects or IoT devices.
Specifications:
| Parameter | Value |
|---|---|
| Supply Voltage | 5.0 ± 0.2V DC |
| Output Voltage Range | 0 ~ 3.0V (analog) |
| Measuring Range | 0 ~ 14 pH |
| Measuring Accuracy | ±0.1 pH (25°C) |
| Response Time | ≤ 1 minute |
| Operating Temperature | 0 ~ 60°C |
| Connector Type | BNC (for probe) |
| Interface | Analog (3-pin: VCC, GND, Signal) |
| Board Dimensions | 42mm x 32mm x 10mm (L x W x H) |
| Probe Cable Length | 1 meter |
| Weight | Approx. 100g (with probe) |
Why Buy From Robo Tech Valley?
At Robo Tech Valley, we ensure every product we offer is quality-checked and backed by excellent support. The DFRobot SEN0161 Analog pH Sensor Module price in bd is handpicked for its reliability, ease of use, and community support. Our team is ready to help with setup, calibration, or troubleshooting — whether you’re just starting out or building complex systems.
We understand the needs of students, hobbyists, and professionals in Bangladesh’s growing tech community. That’s why we offer competitive pricing, fast delivery, and guaranteed satisfaction on every product.
100% Satisfaction Guarantee – Buy with Confidence
At Robo Tech Valley, your satisfaction is our highest priority. We guarantee the quality of every product we sell. If you’re not completely satisfied with the DFRobot SEN0161 Analog pH Sensor Module, simply reach out to us. We’re happy to assist with returns, replacements, or any questions you have. Each unit is inspected for performance before shipment. Add the pH sensor to your cart today and bring accurate, real-time chemical sensing into your next Arduino project.





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