... 20~+125 4.Certificates: CE, RoHS,FDA Level Switch Characters:1.Low cost: cheap material2.long life:> ... 1254.Certificates: CE, RoHS,FDAMovement Explaination:A float switch is a device used to sense the level of liquid ... there are usually two way to use the float switch, to prevent overflow or to prevent dry-fire ... Products as below is A and B type, and you can select 10W or 50W reed switch. Data ScanSFSMax ...