The Permanent All Sky Survey (PASS) is a project for a continuous photometric survey of the entire celestial sphere with a high temporal resolution. Its major objectives are the detection of all giant-planet transits (with periods up to some weeks) across stars up to mag 10.5, and the delivery of continuous time series photometry that is useful for the study of any variable stars. For a southern instrument of PASS, Dome C offers two major advantages over mid-latitude sites: lower noises and greatly improved observational coverage. The simplicity of the instrument should make it fairly easily adaptable to the extreme low temperatures at that site.