I sent this on Monday but not sure if I had goofed on something but it seems to have gone bye bye somewhere. Anyway I was wondering if anyone know of a solid-state methane sensor? I was following the news about the trapped miners but all I found with Google were a flame type sensor (however that works). Does anyone have any info or links? Dave -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist