Abstract: A system is provided for monitoring a condition of a controlled environment. The system includes a first computer configured to store data corresponding to a condition of the controlled environment. The first computer is validated, wherein subsequent alteration of the first computer voids the validation of the first computer. The system further includes a second computer coupled to the first computer. The second computer is configured for access to the data stored in the first computer and for communication of the condition of the controlled environment to a user of the second computer, wherein alteration of the second computer does not void the validation of the first computer. A validation module of the system is configured to validate the second computer for the access and communication, thereby validating the system. A method for monitoring a controlled environment is also provided.

Abstract: A method is provided for validating, at a pre-determined test temperature, the operation of a temperature sensor, controller or monitor in a temperature-controlling device having a temperature-controlled environment to be maintained at a target temperature. A standardized temperature sensor is positioned within the temperature-controlled environment. A thermal mass having a temperature different from the target temperature is provided and placed within the environment. The temperature of the environment is caused to deviate from the target temperature in response to the thermal mass. A comparison between the temperature indicated by the sensor, controller or monitor and the temperature indicated by the standardized sensor is made when the temperature of the environment corresponds to the test temperature.