The Elcometer 114 Dewpoint Calculator (G114-2) is a manual disc calculator that converts wet and dry bulb temperatures into accurate values of dewpoint and relative humidity. Those two figures are central to deciding whether conditions are right for coating: if relative humidity is too high or the surface sits too near the dewpoint, moisture can condense on the substrate and cause the coating to fail, so applicators need a quick, dependable way to derive them on site.

In use, the wet and dry bulb temperatures read from a whirling or sling hygrometer are aligned on the Elcometer 114 Dewpoint Calculator's scales, and the disc returns the corresponding dewpoint temperature and relative humidity directly, without the need to work through printed conversion tables. The Elcometer 114 Dewpoint Calculator covers a range of -10°C to 50°C with an accuracy of ±1% with respect to standard tables, and includes a built-in Celsius to Fahrenheit converter for users who need the temperatures in Fahrenheit.

Requiring no batteries or electronics, the Elcometer 114 Dewpoint Calculator is a simple companion to a hygrometer for painters, applicators and coatings inspectors checking climatic conditions before and during application. The Elcometer 114 Dewpoint Calculator is supplied by BAMR, South Africa's authorised Elcometer distributor.