DewCheck Monitor is a new instrument that not only provides hands-free measuring, but also provides recording and reporting of ambient conditions and surface temperature during blasting and painting operations.Correct ambient conditions are critical for a successful painting job especially at job sites where ambient conditions change rapidly with critical implications for the success of the work, climate recording is of utmost importance. To measure the climate parameters DewCheck Monitor is designed. Relative humidity, air and surface temperature are all measured and stored. Dew point and Delta T (difference between dew point and steel temperature) are calculated and recorded as well resulting in clear documentation of all relevant climate parameters throughout the entire blasting and painting operation conform the ISO8502-4 standard.