The Claydon family have been farming the heavy clay lands of Suffolk since the early 1900s. Jeffrey and Frank Claydon are the third generation to be farming the land now under the E.T. Claydon and Sons family partnership name; the brothers have been farming since 1970 and still farm the land to the present day. This is what makes Claydon products unique; the fact that they are developed on a working farm by farmers for farmers. They are truly tried and tested in real farming conditions in a real farm environment before they are brought to market. The first Claydon product was the Claydon Yield-o-Meter invented by Jeffrey Claydon in 1980, subsequently forming Claydon Yield-o-Meter Limited.