Initially, a few years ago (April of 2022), I tried Tiffany at gasdetectionsolutions dot com, and was connected with Janet who got me taken care of. I tried to email Janet to re-order, but apparently, she has retired, and the email got forwarded to Mitch. Mitch is now the person to contact about these sales, so now replace tiffany in the email address with mitch. FYI, it appears that they have gone up in price since I last ordered, which I fully expected, but they still seem to be cheaper than anywhere else I can find them. The O2 and CO sensors were both $55 each and shipping to SC looks to be about $25. Oh, and he mentioned that the current lead time is 3-4 weeks, so if you're getting close to needing some sensors, take that into account (I don't have any idea if that is common or if something is running behind.
