This liquid water level sensor detects the liquid level in a tank or container. Non-contact design, operates without direct contact with the liquid. Compact size, easy to install. Dimensions: 30 x 19 x 10mm / 1.18 x 0.75 x 0.39 inches Operating voltage: DC 5V or 12-24V Maximum output current: 30mA Response time: 0.5 seconds Operating temperature range: 0C to 60C Sensing distance: 10mm Applications: Household appliances, sanitary ware, intelligent control systems, drinking and cleaning water equipment, water treatment systems, food processing machinery, chemical equipment, and more. Wiring: Black: GND White: Output Red: VCC Material: Plastic Color: Black Package includes: 1 x Non-contact Tank Liquid Water Level Sensor Switch 1 x Bracket (for flat surface mounting) Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement error allowance: +/- 1-3cm.