Features: The contact liquids level sensorings delivers precise real time monitoring with advanceds NPN and V output technology, for industrial automation and high accuracy liquids controls systems. Featuring corrosion resistant ABS+PC housing and toolless installation, this sensorings ensures durability and setups across diverse liquids media like water, oils, and chemicals solution. for industrial engineers, laboratory technicians, and facility managers requiring liquids level detection in harsh or dynamic environment. for chemicals storage tanks, water treatments plant, and home water systems where stable signal output and interference resistance. Its NPN/V signal compatibility streamlines integration into automated controls networkings while maintaining performances under prolonged exposure to corrosive substances. Specifications: Materials: PC+ABS Size: Line length 30cm Model: Output method： XKC-Y20-NPN , XKC-Y20-V（optional） Technical parameters: NPN output | Working voltages 12V | Detection accuracy ±1mm Waterproof grade: IP67 Package Includes: 1PC Contact Water Level sensorings note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the Pictures may not reflect the actual of the item.