Inquiry (采购产品): liquid level Detectors We are looking into finding a supplier for an audible low level detection unit that installs to the side of a open 55 gal drum that's been cut in half. And can sense when the coolant,(which gets increasingly dirtier as the day goes on.) reaches below an adjustable level. It needs to be fairly heavy duty. Ther is no real heat involed. It should be able to handle 140f. **** Hidden Message ***** Mike Jamar 92085 Company: BAE SYSTEMS Advanced Ceramics Div. E-mail: mikejamar@hotmail.com **** Hidden Message ***** mikejamar@hotmail.com