Water Leakage Sensor

A water leakage sensor is a common type of sensor used to detect the accidental accumulation or leakage of liquids (mostly water). The water leakage sensor can convert the water leakage signal into an electrical signal output, thereby triggering an alarm or linkage control. SUCH water leakage sensors offer advantages such as stable performance, flexible use, high reliability, and easy maintenance. They are widely used in data centers, smart homes, and industrial settings for leakage monitoring, making them an ideal choice for monitoring water immersion.

Working Principle of Water Leakage Sensors

Contact water leakage sensors are based on the principle of liquid conductivity, detecting changes in resistance between electrodes to determine if a leak has occurred. A contact water leak sensor has two internal conductive electrodes. In a normal, waterless state, the electrodes are isolated by air. The insulating nature of air causes extremely high resistance between the electrodes, breaking the circuit, and the sensor outputs a normal signal. When water comes into contact with the electrodes, the water, acting as a conductive medium, connects them, causing a sharp drop in resistance. The water leakage sensor's internal detection circuit detects this resistance change and quickly switches its output state, triggering an alarm signal, thus achieving leak detection. To prevent electrode corrosion from affecting detection accuracy and lifespan, the electrodes of contact leak sensors are typically made of corrosion-resistant materials such as stainless steel or gold plating.

Advantages of Water Leakage Sensors

• Highly sensitive and fast-responding, providing early warnings of leaks. Water leakage sensors can detect even small amounts of water with a short response time, effectively preventing leaks from escalating and causing serious consequences such as equipment damage and property loss.
• Strong environmental adaptability, balancing durability and safety. Industrial water leak detection sensors can withstand harsh environments such as humidity and dust, suitable for complex working conditions. Home water leakage sensors are low-power, compact, portable, and offer enhanced safety.
• Flexible installation and wide applicability, meeting the monitoring needs of different environments. Wall-mounted water leak sensors can be concealed by attaching to walls or equipment housings. Wired water leakage sensors offer stable signals and long battery life, suitable for fixed monitoring points. Wireless water leakage sensors are suitable for areas where grooving is inconvenient.

Application Scenarios of Water Leakage Sensors

• Industrial Scenarios: Primarily used in data center server rooms and industrial production workshops to monitor leaks around servers and at pipe/tank interfaces, preventing equipment damage or production accidents.
• Commercial Buildings: Water leak sensors are deployed in basements, pump rooms, and central air conditioning rooms to prevent water pipe ruptures from flooding facilities.
• Home Scenarios: Water leakage sensors can be placed near kitchen sinks, washing machines, and water heater interfaces on balconies to provide timely warnings of household leaks.
• Public Facilities: Suitable for libraries, archives, hospital laboratories, and base station equipment rooms, protecting valuable data and communication facilities from water damage.