Water Level Sensor Module –Liquid Level Detection
The Water Level Sensor Module is a simple and effective sensor designed to detect the presence and level of water or other conductive liquids. It works by measuring the change in electrical conductivity across exposed traces, making it ideal for water tank monitoring, overflow detection, rain sensing, and STEM electronics projects.
This sensor is beginner-friendly and easily interfaces with Arduino, ESP32, and other microcontrollers using analog or digital readings.
Key Features
Operating Voltage: 3.3V – 5V DC
Output Type: Analog (variable with water level)
Sensing Method: Conductivity-based PCB traces
Fast Response Time
Compact & Lightweight Design
Easy Interface with Microcontrollers
Low Power Consumption
Applications / Arduino Projects
Water tank level monitoring
Overflow and leakage detection
Rain detector projects
Automatic pump control systems
Smart irrigation prototypes
STEM education & DIY electronics
Compatibility
Arduino Uno / Nano / Mega
ESP32 / ESP8266
Raspberry Pi (with ADC)
Other 3.3V / 5V microcontrollers
How It Works (Simple Explanation)
Water touches the exposed PCB tracks
Higher water level → more conductive paths → higher analog value
Microcontroller reads the value to trigger alarms or control pumps
Why Buy From ScienceStore.pk?
Tested and reliable sensor modules
Ideal for students, teachers & makers
Fast delivery across Pakistan
Perfect for school labs & STEM workshops
Supported by Pakistan Science Club






