The PFP7/C single channel flame photometer uses low temperatures and is designed specifically for clinical application for finding the values of potassium, sodium and lithium. With the in-built lineariser circuitry of the PFP7/C reading for both potassium and sodium can be viewed directly by the mmol/lThe unit series 7 diluter can be used along with the PFP7/C gives serum samples that dilute efficiency and accuracy to the specific ratios.