Features 1、Various Parameters: The noncontact level sensor has NPN output, 500mS response time and DC5V input voltage. 2、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. 3、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. 4、Pure Electronic Circuit Structure: The liquid level sensor is accurate and stable in detection, pure electronic circuit structure, non mechanical working mode, stable performance. 5、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 Liquid Level Accuracy: ±3mm Environmental Certification: ROHS 2.0 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