.I sprayed everything down before the co test and there were no leaks....
That's why I made sure I bought a digital one so I knew what was going on. I glance at it every know and then to make sure it's reading 0. I haven't checked, but I would think you still could get a digital one... Our 5th wheel trailer has a digital one plus a propane sensor....
All I know is, if it detects a propane leak in the trailer an alarm will go off. It goes off if the battery goes dead too.... The sensor is located in the kitchen on the low side of a lower cupboard.......
