A low cost method of measuring parameters of a product in the field, such as the coating thickness on an individual vehicle, sends the measurement data set to a common pocket-size device also carried by the inspector, labels the data set, and transmits the data set to a remote computer to produce a product condition report. Alternately, the data can be transmitted directly to a remote buyer. The method is a low cost, practical and efficient because the inspector in the field only requires two pocket-size wireless devices. Inspectors are freed from carrying relatively bulky or heavy computers in the field. Furthermore, the method employs devices already owned by a numerous inspectors and the method requires no proprietary or expensive equipment. The remote computer permits the efficient addition of further information to create detailed reports that are organized or compiled and transmitted to customers.