Why control temperature for viscosity measurement? Defecting changes in your sample's properties is valuable information for predicting your product's performance. Temperature control during viscosity measurement helps insure accurate test results. The elite Model TC-602 bath is perfect in small spaces while providing standalone operation.     The TC-602 Temperature Control Bath so compact yet has more features than you'd expect with its small size. It is available with either an enhanced digital controller (TC-602D) or with a programmable controller (TC-602P). How do you choose?