Abstract: The present invention relates to a gas monitoring device having an enhanced gas tight base unit containing a sensor. The base unit is detachably connected to an elongated hollow rod having a perforated tip end and a base unit connection end. The base unit comprises a sensor, a sealed gap, and a parts unit having a communication module (140) containing a telemetry unit with an antenna, a processor (145) and a circuit board (150). The invention also relates to a method of monitoring the gas concentration within a fumigated commodity sample comprising inserting the tapered perforated end of a gas monitoring device into a commodity sample.

Abstract: The present invention relates to a gas monitoring device having a gas tight base unit containing a sensor. The base unit is detachably connected to an elongated hollow rod having a perforated tip end and a base unit connection end. The base unit comprises a sensor, a data processor, a telemetry unit, a battery with wireless charging and an internal on/off switch. The invention also relates to a method of monitoring the gas concentration within a fumigated commodity sample comprising inserting the tapered perforated end of a gas monitoring device into a commodity sample.

Abstract: An apparatus for removing fumigation gasses from fumigated structures is provided. Air is directed from a structure through an adsorption unit and then recirculated back into the structure. A fan directs air through the adsorption unit. The adsorption unit contains an annularly shaped adsorption bed and an inner passage way and outer passage way through which fumigation gasses are directed. A lower adsorption efficiency per pass through the adsorption bed is used in conjunction with multiple passes with the method of the present invention.

Abstract: A method for removing fumigation gasses from fumigated structures is provided. Air is directed from a structure through an adsorption unit and then recirculated back into the structure. A fan directs air through the adsorption unit. The adsorption unit contains an annularly shaped adsorption bed and an inner passage way and outer passage way through which fumigation gasses are directed. A lower adsorption efficiency per pass through the adsorption bed is used in conjunction with multiple passes with the method of the present invention.