A-7325 is CHEMetrics Single Analyte Meter (SAM) for high range COD analysis. It is compatible with CHEMetrics 0-1500 ppm HR COD vials (*Kit Cat. Nos. K-7360S, K-7365, K-7361S, K-7366) and 0-15,000 ppm HR+ COD vials (*Kit. Cat. Nos. K-7370S, K-7375, K-7371S, K-7376). The unit is powered by 4 AAA batteries (included) and is safely shipped in a cardboard box.