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Not to hijack this thread, but I need an electronics expert opinion too. I am trying to make a water sensing alarm for my veg oil filter. Here is a diagram that I drew up. What do you think? The water that collects in the filter will act as a switch. It has a resistance of about 20 K ohm. Will I still need R1 or will the resistance from the fluid be good enough? Thanks
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1979 240D- 316K miles - VGT Turbo, Intercooler, Stick Shift, Many Other Mods - Daily Driver
1982 300SD - 232K miles - Wife's Daily Driver
1986 560SL - Wife's red speed machine
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