Patent ID: 8314712

Claim:
A system for measuring and reporting spoilage gas concentration in an airspace over stored grain within grain storage bins comprising: a) a filterless passive dust exclusion device comprising an enclosed pathway with an inlet adapted to be exposed to air of the bulk grain storage bin, an outlet adapted to be connected to a gas detector for measuring spoilage gas concentration, and a non-linear path between said inlet and outlet, wherein a velocity of air present at said inlet is substantially reduced prior to reaching said outlet such that the amount of dust in the sampled air is substantially reduced, and the spoilage gases are delivered to the gas detector by diffusion; b) said gas detector connected to said dust exclusion device; c) a control processor that directs gas detector operation and collection of gas concentration data; d) a transmitter communicably connected to said control processor that transmits collected gas concentration data to a receiver; e) a display connected to said receiver configured to display the collected gas concentration data as measured over time.