Oxysense 02 meter
I am looking to sell a 2nd generation machine from Oxysense. The company has since been taken over by TMI from Mass. Basically how the technology works is there is an acrylic backed rubidium coated Dot that gets glued to the inside of either a can or a beer bottle. Then the machine transmits blue light and if there’s oxygen present the dot refracts back red light. The machine then analyzes this and gives you a ppb reading. The neat thing about this is that it’s non-invasive so it might not be as easy to use as current DO meters. However I always found it useful because you could glue a DOT into the headspace of a clear bottle and a dot in the body of a clear bottle or vice versa in a can and then you could figure out if your oxygen ingress was happening in the headspace or if it was in the beer itself. Not going to lie it takes someone that understands machinery as well as a little bit of a computer literacy to make this work very well but it gives you tons of great information.