The Digital Thermometer allows immediate measurement of the substrate temperature. The digital display clearly indicates the prevailing temperature and auto-updates as the temperature changes. The ergonomic housing ensures a comfortable fit into the palm of the hand or easy storage in a pocket. The unit is supplied in a protective pouch for safe and easy storage. The rigid stainless steel ribbon surface contact probe is secured into the body of the housing when not in use protecting against accidental damage. By folding the probe out of the housing through 180 degrees the unit turns on and becomes ready for use. The battery saving auto-shut-off feature turns off the product after five minutes of inactivity. Accurate temperature information is important to ensure, for example, that the substrate remains within the advised temperature parameters of the coating system, or to ensure that the substrate temperature remains above the prevailing dew point.