A wireless sensor assembly comprising a housing , an external sensor , a wireless power source , and one or more electronics , characterized in that : the housing includes an upper portion and a lower portion connected to the upper portion , and defines an interior space between the lower portion and the upper portion , wherein: the upper portion has a first sidewall and the lower portion has a second sidewall opposed to the first sidewall to provide opposing ends of the housing , the upper portion and the lower portion define a sealing interface that is angled and extends to the first sidewall of the upper portion and the second sidewall of the lower portion , and one of the opposing ends defines a first aperture to receive the external sensor ; the wireless power source mounted within the housing ; and the one or more electronics mounted within the housing and configured to receive power from the wireless power source and to be in electrical communication with the external sensor , the one or more electronics comprising: a wireless communication component ; and a microprocessor configured to execute a firmware , wherein the firmware is configured to change a rate of data transmittal from the wireless communication component to an external computing device such that the wireless communication component has a power consumption less than 0.5 mW, wherein the one or more electronics are powered exclusively by the wireless power source and the wireless sensor assembly defines a volume less than 32.7741cm 3 . the housing includes an upper portion and a lower portion connected to the upper portion , and defines an interior space between the lower portion and the upper portion , wherein: the upper portion has a first sidewall and the lower portion has a second sidewall opposed to the first sidewall to provide opposing ends of the housing , the upper portion and the lower portion define a sealing interface that is angled and extends to the first sidewall of the upper portion and the second sidewall of the lower portion , and one of the opposing ends defines a first aperture to receive the external sensor ; the upper portion has a first sidewall and the lower portion has a second sidewall opposed to the first sidewall to provide opposing ends of the housing , the upper portion and the lower portion define a sealing interface that is angled and extends to the first sidewall of the upper portion and the second sidewall of the lower portion , and one of the opposing ends defines a first aperture to receive the external sensor ; the wireless power source mounted within the housing ; and the one or more electronics mounted within the housing and configured to receive power from the wireless power source and to be in electrical communication with the external sensor , the one or more electronics comprising: a wireless communication component ; and a microprocessor configured to execute a firmware , wherein the firmware is configured to change a rate of data transmittal from the wireless communication component to an external computing device such that the wireless communication component has a power consumption less than 0.5 mW, a wireless communication component ; and a microprocessor configured to execute a firmware , wherein the firmware is configured to change a rate of data transmittal from the wireless communication component to an external computing device such that the wireless communication component has a power consumption less than 0.5 mW, <EOS>