High Sensitivity Water Level Sensor compatible with Arduino

💧 High Sensitivity Water Level Sensor
🧩 Overview
Low-cost water level detection sensor module
Designed for Arduino and other microcontrollers
Detects water presence, level, and leakage
Works using conductive trace technology
⚙️ Working Principle
Sensor has parallel exposed conductive traces
Water bridges the traces → conductivity increases
Voltage changes across traces
Output sent as analog signal (water level indication)
👉 More water contact = higher output signal
📊 Key Specifications
🔹 Operating Voltage: 3V – 5V DC
🔹 Current Consumption: < 20 mA
🔹 Output Type: Analog (0 – ~4.2V)
🔹 Detection Area: ~40 × 16 mm
🔹 Working Temperature: 10°C – 30°C
🔹 Humidity Range: 10% – 90% RH
🔌 Pin Configuration
🟡 S (Signal) → Analog output
🔴 VCC → 3.3V / 5V
⚫ GND → Ground
🔄 Features
High sensitivity to water droplets and levels
Analog output for level measurement
Low power consumption
Simple and compact design
Easy interface with Arduino
🛠️ Applications
Water tank level monitoring 💧
Rain detection systems 🌧️
Leakage detection ⚠️
Smart irrigation systems 🌱
Liquid presence sensing
⚠️ Usage Tips
Avoid long-term exposure → may cause corrosion of traces
Use intermittent power (ON/OFF) to increase lifespan
Clean sensor regularly for accuracy
Use protective coating (optional) for durability
✅ Advantages
Very low cost
Easy to use
High sensitivity
Direct analog output (no complex processing)
⚠️ Limitations
Prone to corrosion over time (electrolysis effect)
Not suitable for long-term submerged use
Accuracy affected by water impurities
Not ideal for precise level measurement
🔍 Summary
A simple high-sensitivity water level sensor
Uses conductive traces to detect water presence
Outputs analog signal proportional to water contact
Best for basic detection and DIY projects