It came with a 10″ color CRT in 6 different models.  The basic unit was capable of performing spirometry, helium dilution lung volumes and single-breath DLCO. N2 washout lung volumes, closing volumes, steady-state DLCO and Viso-V (heliox spirometry) were options.  Photo is from a sales brochure courtesy of James Sullivan, BA, RPFT, Supervisor, Pulmonary Laboratories, Memorial Sloan Kettering Cancer Center.