F-Cal 4000 is a portable calorimeter with four sample channels that emulates the curing conditions of concrete flatwork. It is ideal for quick testing of concrete in field conditions. F-Cal units are portable, yet rugged enough to be carried in the back of a pick-up truck, or left on site in a Concrete plant for testing in real conditions.F-Cal 4000 enables testing of up to four cement, mortar or concrete simultaneously, in standard 4"x8" (100 mm x 200 mm) cylinders or in any container of equal or smaller size. Calmetrix's proprietary CalCommander software for data retrieval and analysis lets users to select one of the F-Cal's cells as a temperature reference cell.