Description
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The pH Sensor Probe with Signal Conditioning Module is designed for measuring the acidity or alkalinity level of liquid solutions. It is suitable for Arduino, ESP32, Raspberry Pi, water quality monitoring, aquarium projects, hydroponics, laboratory experiments, and industrial liquid testing applications.
pH Sensor Probe with Module তরল পদার্থের pH value বা acidity/alkalinity পরিমাপ করার জন্য ব্যবহৃত হয়। এটি Arduino, ESP32, water quality monitoring, aquarium, hydroponics, laboratory project এবং industrial liquid testing system-এর জন্য উপযুক্ত।
This kit includes a pH electrode probe and a signal conversion board with BNC connector. The module converts the pH probe signal into an analog voltage output that can be read by a microcontroller.
Key Features | প্রধান বৈশিষ্ট্য
- pH measurement probe with signal conditioning board
- BNC connector for secure probe connection
- Analog output for Arduino, ESP32, STM32, Raspberry Pi and other controllers
- Suitable for water quality testing and liquid monitoring
- Adjustable calibration using onboard potentiometer
- Easy to connect with microcontroller analog input
- Useful for pH monitoring in aquarium, hydroponics, water tank and lab projects
- Compact module design for DIY and automation projects
Applications | ব্যবহার ক্ষেত্র
- Water quality monitoring
- Aquarium pH monitoring
- Hydroponics and aquaponics system
- Drinking water testing project
- Fish farm water monitoring
- Laboratory pH experiment
- Industrial liquid monitoring
- IoT-based water quality data logger
- Arduino and ESP32 sensor projects
- Smart agriculture and greenhouse automation
Package Includes | প্যাকেজে যা থাকছে
- 1 × pH Sensor Probe
- 1 × pH Signal Conditioning Module / Interface Board
- 1 × BNC Connection Cable / Probe Connector, depending on stock batch
Package contents may vary slightly depending on supplier batch. Please check the product image before ordering.
Specifications | স্পেসিফিকেশন
- Product Type: pH Sensor Probe with Module
- Measurement Type: Liquid pH value
- Output Type: Analog voltage signal
- Connector Type: BNC connector
- Module Interface: VCC, GND, Analog Output
- Compatible Boards: Arduino, ESP32, ESP8266, STM32, Raspberry Pi
- Calibration: Onboard adjustable potentiometer
- Application: Water quality, hydroponics, aquarium, lab and industrial liquid testing
- Recommended User: Student, maker, IoT developer, lab technician, automation engineer
How It Works | কীভাবে কাজ করে
The pH probe detects hydrogen ion activity in a liquid solution and produces a small electrical signal. The signal conditioning module amplifies and converts this signal into an analog output voltage. The microcontroller reads this voltage through an analog input pin and converts it into a pH value using calibration.
pH probe তরল পদার্থের hydrogen ion activity detect করে এবং একটি ছোট electrical signal তৈরি করে। Module সেই signal amplify করে analog voltage output দেয়। Arduino বা ESP32 সেই analog voltage read করে calibration অনুযায়ী pH value calculate করে।
Important Calibration Note | গুরুত্বপূর্ণ ক্যালিব্রেশন নোট
For accurate measurement, the sensor must be calibrated using standard pH buffer solutions such as:
- pH 4.00 buffer solution
- pH 7.00 buffer solution
- pH 10.00 buffer solution, if required
সঠিক reading পাওয়ার জন্য pH buffer solution দিয়ে calibration করা প্রয়োজন। Calibration ছাড়া reading inaccurate হতে পারে।
Important Usage Notes | গুরুত্বপূর্ণ নোট
- Do not keep the pH probe dry for a long time.
- Clean the probe after use with distilled water.
- Use proper calibration before real measurement.
- Avoid measuring very hot or corrosive liquid unless the probe rating supports it.
- pH probes are sensitive instruments; handle carefully.
- For ESP32, make sure the analog output voltage does not exceed ESP32 ADC input limit.
- This product is for project and monitoring use; for certified laboratory use, professional calibration is required.
Why Choose This pH Sensor Module?
This pH sensor kit is a practical solution for building water monitoring systems and smart agriculture projects. It allows users to measure pH level digitally using Arduino or ESP32 and can be connected with displays, data loggers, IoT platforms, relay control systems, and automatic dosing systems.
এই module দিয়ে সহজে Arduino/ESP32 based pH monitoring system তৈরি করা যায়। চাইলে display, data logger, IoT dashboard, relay control বা automatic dosing system-এর সাথে ব্যবহার করা যায়।
Arduino Example Code
#define PH_PIN A0 float calibrationOffset = 0.00; // Adjust after calibration void setup() { Serial.begin(9600); } void loop() { int sensorValue = analogRead(PH_PIN); float voltage = sensorValue * (5.0 / 1023.0); // Basic formula example only. // Calibration is required for accurate result. float pHValue = 7 + ((2.5 - voltage) / 0.18) + calibrationOffset; Serial.print("Analog Value: "); Serial.print(sensorValue); Serial.print(" | Voltage: "); Serial.print(voltage, 2); Serial.print(" V | pH Value: "); Serial.println(pHValue, 2); delay(1000); }
Frequently Asked Questions | FAQ
Q1: What is this pH sensor used for?
It is used to measure the pH level of liquid solutions such as water, nutrient solution, aquarium water, and other test liquids.
Q2: Can I use it with Arduino?
Yes. The module provides analog output, which can be connected to an Arduino analog input pin.
Q3: Can I use it with ESP32?
Yes, but make sure the module output voltage is safe for ESP32 ADC input.
Q4: Does it need calibration?
Yes. pH sensors must be calibrated using standard buffer solutions for accurate results.
Q5: Can I use it for aquarium monitoring?
Yes. It is suitable for aquarium and fish tank pH monitoring projects.
Q6: Can it measure drinking water pH?
Yes, it can be used for basic water pH monitoring, but for certified testing, proper calibration and laboratory-grade equipment are required.
Q7: Is the probe waterproof?
The probe tip is designed to be used in liquid, but the signal module board is not waterproof.
Q8: Can it be used continuously in water?
It may be used for monitoring, but long-term immersion depends on probe quality and maintenance. Regular cleaning and calibration are recommended.
pH Sensor Probe with Module BNC pH Meter Kit for Arduino ESP32
Buy pH sensor probe with signal conditioning module and BNC connector for Arduino, ESP32, water quality monitoring, aquarium, hydroponics and IoT projects.
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