Environmental sensor

A device for evaluating the effects of exposure to an environmental air on a processed circuit board, comprising:

• a) a test probe comprising a circuit board processed by a method to be evaluated, wherein the test probe comprises a pair of traces and circuitry effective for determining the electrical resistance between said traces, wherein the traces are separated by a test distance;
• b) a test probe socket for receiving said test probe and for connecting said test probe to a device that stores data, or analyzes data, or stores and analyzes data;
• c) a pathway for directing environmental air across the traces of said test probe;
• d) a fan for blowing environmental air through said pathway and across said test probe;
• e) a control element for controlling a fan to selectively blow or not blow air through said pathway and across said test probe;
• f) a control element for controlling power applied to one or more of the test probe traces;
• g) data storage for storing data relating to measured electrical resistance between the test probe traces;
• h) data storage for storing data relating to acceptable electrical resistance between test probe traces;
• i) circuitry for comparing a measured electrical resistance between two test probe traces to a stored value for the acceptable electrical resistance between two test probe traces;
• and
• j) an output for communicating the results of the comparison between the measured electrical resistance between two test probe traces and the stored value for the acceptable electrical resistance between two test probe traces.