In this paper. the transcritical CO2 refrigeration system with ejector is applied to a commercial ultra-cold cabinet. The influence of the key operating parameters of the ejector on the system performance is analyzed. and the measurement method of the experimental parameters is proposed. https://www.diegojavierfares.com/super-grab-TV-LED-43-Samsung-UE43AU7105KXXC-UHD-4K-Procesador-Crystal-UHD-Smart-TV-Titan-Gray-deal-day/