Non-contact IP65 Capacitive Liquid Level Sensor for Arduino

This non-contact capacitive sensor accurately detects liquid levels from the outside of non-metallic containers such as plastic, glass, or ceramic. By sensing changes in capacitance, it determines the presence of fluid without any direct contact, making it ideal for sealed containers or corrosive liquids. Key features include adjustable sensitivity, a real-time status indicator, and an IP65 waterproof rating. With a wide 5~12V operating voltage and easy integration with platforms like Arduino, this reliable liquid sensor is an excellent solution for projects like automatic water dispensers, smart aquarium controls, and industrial fluid monitoring.

Non-Contact & Hygienic Detection

The non-contact water sensor's primary advantage is its non-contact design. It mounts to the exterior of a container, meaning it never touches the liquid inside. This non-invasive method prevents contamination of the fluid and protects the sensor from corrosion by harsh chemicals like strong acids and alkalis. It makes the sensor an excellent choice for sealed containers, food-grade applications, and for detecting the level of high-temperature liquids like boiling water. The IP65 waterproof rating ensures durability in various environments.

High Compatibility & Versatility

Engineered for broad applicability, this Arduino liquid level sensor can penetrate a wide range of non-metallic materials, including plastic, glass, and ceramic, with a wall thickness of up to 20mm. Its design is effective on various surfaces, whether flat, curved, or cylindrical, making it suitable for tanks, containers, and pipes with an outer diameter of 11mm or more. A wide operating voltage of 5~12V ensures seamless integration with a multitude of circuits and microcontrollers, including Arduino.

Adjustable Sensitivity & Stable Performance

To ensure accurate detection across different materials and container thicknesses, the water dispenser sensor features adjustable sensitivity. This allows for fine-tuning to achieve optimal performance and reliability in any specific setup. Built with a pure electronic circuit and a non-mechanical structure, it offers high stability and a long operational lifespan. The design incorporates special treatment for power frequency and common mode interference, providing strong resistance to external electromagnetic noise.

Real-Time Status Indication

An integrated status indicator provides immediate visual feedback on the liquid level. This onboard light signals when the liquid has reached the sensor's detection point, simplifying the process of installation, debugging, and real-time monitoring. The IP65 liquid level sensor outputs a simple high-level digital signal, making it straightforward to collect data with a microcontroller for automated control systems.

Sensitivity Adjustment

Status Indicator

Wiring Diagram