Features Various Parameters --- The noncontact level sensor has NPN output, 500mS response time and DC5V input voltage. Corrosion Resistance --- The level sensor will not be corroded by strong acid and alkali and other corrosive liquids, and will not be affected by scale or other sundries. Liquid Level Memory --- The sensor has intelligent liquid level reference adjustment and liquid level memory function, liquid level status display mode, and can realize multiple points of series connection. Pure Electronic Circuit Structure --- The liquid level sensor is accurate and stable in detection, pure electronic circuit structure, non mechanical working mode, stable performance. Usage Scenario --- The noncontact level sensor is suitable for use on the outer wall of non metallic pipes without direct contact with the liquid. Specification: Item Type: Non Contact Liquid Level Sensor Material: PC Model: XKC Y21 NPN Current Consumption: ±8mA Output Mode: NPN Response Time: 500mS Ripple And Noise Voltage: <1000mvpp Liquid Level Accuracy: ±3mm Environmental Certification: ROHS 2.0 Input Voltage: DC5V Output Current: ≤100mA Operating Ambient Temperature: -20 to 75℃ Sensing Thickness (Sensitivity) Range: ≤5mm Safety Standard Certification: CE Package List:1 x Water Level Liquid Sensor Note:Cautions. 1. Double sided adhesive made of foam wool must not be used. 2. The container material must be insulating material.3. Try to use a uniform material without air interlayer, no air bubbles, not absorbent, the dielectric constant does not easily change the material for the container. Package List 1 x Water Level Liquid Sensor