The XKC-Y25 NPN Intelligent Non-Contact Liquid Level Sensor is a high-reliability external liquid detection module designed to sense liquid levels without direct contact. Using advanced capacitive sensing technology, it can detect water and other liquids through non-metallic containers, eliminating contamination and corrosion risks. Ideal for automation systems, smart appliances, water tanks, coffee machines, and DIY electronics projects. ⚙️ Technical Specifications Model: XKC-Y25 Output Type: NPN (open collector) Working Voltage: 5V – 24V DC Detection Method: Non-contact capacitive sensing Detection Thickness: Up to ~20mm (non-metallic container wall) Response Time: < 500ms Protection: Waterproof sensor head Status Indicator: Built-in LED 🔌 How It Works The sensor is mounted externally on the outside wall of a plastic, glass, or ceramic container. It detects liquid presence inside the container without touching the liquid itself. When liquid reaches the sensing point: Output switches (NPN signal) LED indicator lights up 🚰 Common Applications Water tank level monitoring Smart dispensers & coffee machines Aquarium systems Medical equipment Industrial liquid monitoring IoT & automation projects ⭐ Key Advantages Non-contact detection (no contamination) No corrosion or probe degradation High sensitivity and stability Easy installation (no drilling required) Long service life ⚠️ Important Notes Works only through non-metallic containers (plastic, glass, etc.). Not suitable for metal tank walls. Verify wiring for NPN output compatibility with your controller (may require pull-up resistor). 💡 Ideal For Perfect for engineers, automation installers, makers, and STEM students building smart liquid monitoring systems.
