ITEM NAME:2pcs Optical Infrared Water Liquid Level Sensor Liquid Water Control Switch SE Features: 1.No mechanical moving parts, high reliability 2.High precision level control 3.Meet the safety standard requirements 4.RoHS compliant. 5.Easily mounting method with locking nut. Measurement range:single-point measurements 6.Equipped with 50 cm cable length. 7.Measuring accuracy :1MM 8.Current output:15mA 9.Power voltage:5v 10.Application: Humidifiers, heaters Pumps, bathtubs, sanitary ware, medical equipment Steam and other level control equipments Package included: 2pcs x Liquid Level Sensor Liquid Water Level Control Switch.RoHS compliant.