... working temp:-20~+125 4.Certificates: CE, RoHS,FDA Level Switch Characters:1.Low cost: cheap material2.long life:>1000000 ... RoHS,FDAMovement Explaination:A float switch is a device used to sense the level of liquid in a tank.When ... air-condition, air-cooler, BSD-P, humidifier, dehumidifier,fluid control,a pump,an indicator,an alarm,or other device ... to working with you as partners !! Water Level Switch