Features ★ Non Contact Liquid Level Sensor - Non-Contact Water Level Detector is suitable for the outer wall of non-metallic pipes without direct contact with liquids, and will not be corroded by corrosive liquids such as strong acid and alkali, and is not affected by scale or other debris.Pure electronic circuit structure, non-mechanical working mode, stable performance and longevity. ★ Strong Compatibility - Liquids, powders, and particulate matter can be detected. water tank level sensor through a variety of non-metallic containers, such as plastic, glass, ceramics, etc., sensing distance up to 20mm ★ Accurate Tesing - Contactless Water Level Sensor Suitable for liquid sensing in all types of containers. Intelligent liquid level reference adjustment and liquid level memory function, liquid level status display mode, multi-point series connection, The test is accurate and stable, and the boiling water level can be detected ★ High Performance - Non-Contact Water Level Sensor is High stability, high sensitivity, strong interference capability, Non Contact Liquid Level sensor free from external electromagnetic interference, special treatment for power frequency interference and common mode interference, to be compatible with all 5~24V power adapters on the market. ★ Customer Service - We are committed to meeting customer demands to create the finest products. Any suggestions and request please feel free to contact us in anytime that we can try our utmost to reply in short time. Specification:Item Type: Sensor Working Voltage: 5-12V Induction Principle: Capacitive Liquid Level Sensing Output Form : NPN Model: XKC-Y25-NPN Response Time: 500ms Output Current: 1~100mA Working Environment Temperature: -10~100°C Induction Thickness (Sensitivity) Range: ≤20mm Level Error: ±1.5mm Humidity: 5%~100% Material: ABS Waterproof Performance: IP67 Package List:1 x Sensor Package List 1 x Sensor