The CQRobot non-contact liquid level sensor realizes non-contact detection of the liquid level in a closed container. It adopts advanced signal processing technology and high-speed signal processing chip, breaking through the influence of container wall thickness. It is simple to install and easy to use, and can detect the level of various toxic substances, strong acids, strong alkalis and various liquids in high-pressure airtight containers. The sensor comes with 2 DIP switches, Compatible with Arduino, Raspberry Pi and Other Motherboards. ? Note: For technical support, please refer to CQRobot Wiki to get the test code, SKU: ? ???CQRSENYW001.SPECIFICATIONSSensor Probe and Adapter Specifications - Input Voltage: DC 5V - Current Consumption: 5mA - Output Voltage (High Level): 3.3V or 5V (Right Dial Switch Control) - Output Voltage: 0 - Output Current: 1mA to 50mA - Response Time: 500ms - Working Environment Temperature: 0 to 105 Degree Celsius - Induction Thickness (Sensitivity) Range: 0 to 13 mm - Humidity: 5% to 100% - Material: ABS - Waterproof Performance: IP67 - Dimension: 31.6mm * 30mm - Mounting hole size: 3.0mm Ocean interface Cable Specifications - Cable Specifications: 22AWG - Material: Silicone - Length: 21cm - Withstand Voltage: Less Than 50V - Withstand Current: Less Than 1000MA - Line Sequence: Black-Negative Power Supply, Red-Positive Power Supply, Green-Signal.DISTRIBUTION LIST1* Liquid Level Sensor Probe 1* Liquid Level Sensor Adapter 1 * Ocean interface JST 3-Pin Cable