pH Sensor Set

🌊 Analog pH Sensor Kit for Arduino

Accurate Water Quality Monitoring Made Simple

Measure, monitor, and control water pH with ease — perfect for DIY projects, aquaponics, and science experiments.

---

✔ Accurate pH Monitoring (0–14 range)
✔ Perfect for Arduino Projects
✔ Ideal for Water Systems & Experiments
✔ Adjustable Calibration for Better Precision
✔ Plug-and-Play with BNC Probe Design

---

💡 What You Can Build

• 🐟 Fish tank & aquarium monitoring

• 🌱 Aquaponics & hydroponics systems

• 🚰 Water quality testing tools

• 🧪 Science lab experiments

• 🤖 Smart IoT environmental projects

---

⚠️ Important Compatibility Note

❗ This module runs on 5V ONLY
Not compatible with 3.3V boards like ESP32 or NodeMCU without level shifting.

---

📦 What’s Included

• 1 × Analog pH Sensor Module

• 1 × pH Probe (BNC connector)

• 1 × KCl Storage Solution

⚠️ Buffer solutions for calibration are NOT included

---

⚙️ Key Specifications

• Measuring Range: 0 – 14 pH

• Accuracy: ±0.2 pH (at 25°C)

• Operating Temperature: 0 – 60°C

• Response Time: ≤ 1 minute

• Module Size: 43 × 32 mm

• Output: Analog (0–5V)

---

🔧 Features

• BNC connector for easy probe replacement

• Analog output for Arduino integration

• Built-in gain adjustment potentiometer

• Power indicator LED

• Refillable probe design for longer lifespan

---

🧠 How It Works (Simple Explanation)

pH measures how acidic or alkaline a liquid is:

• pH 7 → Neutral

• Below 7 → Acidic

• Above 7 → Alkaline

This sensor converts pH levels into a voltage signal your Arduino can read.

---

🔌 Basic Usage

• VIN → 5V power

• PO → Analog input (Arduino)

📌 Calibration tip:
Adjust the blue potentiometer to ~2.5V = pH 7

---

⚠️ Important Handling Notes

• White crystals on the cap? Normal (KCl residue)

• Always store probe in KCl solution

• ❌ Never let the probe dry out

• Avoid switching rapidly between extreme pH liquids

• Allow 10–60 seconds per reading for accuracy

---

🎯 Who Is This For?

• Arduino & electronics hobbyists

• Students & lab experiments

• Aquaponics / hydroponics builders

• DIY smart water monitoring projects

---

🛒 Start Measuring Like a Pro

Build your own pH monitoring system and take control of water quality in your projects today.