just installed the 2 sensor model on my 1980 john deere 2140 tractor and I absolutely love it , the oem temperature gauge is all over the place showing hot when it’s only at 65deg , installed 1 sensor on the lower thermostat housing and the other on the engine oil filter and I now know exactly what the machine is doing , no more stress and guesswork during those long hot summer slashing days, top quality product, simple as hell to install and the best bit …. AUSTRALIAN MADE PRODUCT, I will be ordering one for my 60 series Landcruiser and one for my second tractor in the new year Thanks guys