This is a compatible Maxtec MAX-12A O2 sensor for use with: Air Shields Isolette; Analytical Instruments; City Technologies; Criticare 8100 Poet, 8500 Poet; Envitec; Datex-Ohmeda® Centiva S/5; Hill Rom C2000, Hamilton Galileo, Raphael, Arabella, Multinex Analys; Hudson RCI; Isolette C2000 and 8000; Maxtec; Nuova; ...