Key Features:

✔ Detection Method: Conductivity-based (works with water and conductive liquids) ✔ Output Options:

• Analog Output (0V–5V, varies with water depth)

• Digital Output (TTL, adjustable via sensitivity potentiometer) ✔ Operating Voltage: 3.3V–5V DC (compatible with Arduino, ESP8266, Raspberry Pi) ✔ Probe Material: Corrosion-resistant nickel alloy (long lifespan) ✔ Detection Area: 10mm × 40mm exposed traces (measures droplets to submersion) ✔ Response Time: <100ms (fast detection) ✔ Module Size: 20mm × 60mm (compact PCB design)

Applications:

• Smart Plant Monitoring – Soil moisture detection for automatic irrigation

• Leak Alarms – Flood detection in basements/industrial equipment

• DIY Projects – Water level indicators for tanks, aquariums, or coffee makers

• Weather Stations – Rainfall measurement

How It Works:

1. Analog Mode: Output voltage increases with water depth (0V = dry, ~4.5V = submerged).

2. Digital Mode: Outputs HIGH/LOW when liquid crosses a set threshold (adjustable via potentiometer).

Wiring Example (Arduino):

• VCC → 5V

• GND → GND

• A0 → Analog input (for depth measurement)

• D0 → Digital input (for on/off detection)

Package Includes:

• 1× C43 Water Level Sensor Module

Why Choose the C43 Sensor?

✅ Budget-Friendly – Cheaper than ultrasonic/optical sensors ✅ Easy to Use – No calibration needed for basic detection ✅ Low Power – Suitable for battery-powered projects