Capacitive Liquid Level Sensor | Non-Contact Detection

The XKC-Y25 is a sensor that detects liquid levels without touching the liquid. It uses capacitance to sense water through container walls. This sensor works like a simple liquid level switch. It never touches the fluid, which is good for projects needing a clean, dependable water detection sensor. Features and Benefits - No contact needed - It attaches to the outside of a tank. This prevents liquid contamination and corrosion. - Sensitivity adjusts - A small screw lets you fine-tune detection. It works for different non-metallic materials and thicknesses. - NPN signal output - It gives a simple high/low signal. This is easy to connect with microcontrollers like Arduino or PLCs. - Remembers level setting - It keeps your setting after a power cycle. You don't need to reset it. Applications - Home water tanks - You can automate a pump. This helps maintain water levels in a storage tank. - Aquarium projects - Build an auto top-off system. You won't need to drill into your glass or acrylic tank. - DIY electronics - Make a simple alert. It signals when a container is full or empty. What It Is This is a Y25-V 12V digital output capacitive liquid level sensor designed for non-contact detection. It operates within a voltage range of 5-24V DC. As a proximity sensor, it detects the presence or absence of liquid without direct physical contact, making it suitable for applications where direct contact could cause contamination or damage. The sensor functions based on capacitance theory, meaning it measures changes in electrical capacitance caused by the presence of a liquid. This electronics module provides a digital output, indicating a clear on/off state for liquid level detection. Key Uses & Applications This non-contact liquid level sensor is ideal for various industrial and automation applications where reliable liquid level monitoring is crucial. Its 5-24V DC voltage range makes it compatible with many existing control systems. Common uses include monitoring fluid levels in tanks, reservoirs, and pipes without needing to drill into the container, preventing leaks or contamination. As a proximity sensor, it is particularly useful in environments where hygiene is paramount. It can be integrated into control systems to trigger pumps, alarms, or shut-off valves when a specific liquid level is reached. How to Choose When selecting a sensor for liquid level detection, consider the required voltage, which for this model is 5-24V DC. The non-contact detection method is crucial for applications where the sensor cannot directly touch the liquid. Ensure the digital output type is compatible with your control system. For testing a proximity sensor like this, apply the specified voltage (5-24V DC) and observe the digital output change when liquid is introduced or removed from the detection zone. While this is a capacitive sensor, other types of proximity sensors exist, such as optical sensors, which may be more suitable for different materials or distances beyond 5 cm.