a manual inflator having a status indicator that indicates whether a fully - charged , unspent gas cylinder has been installed on the inflator . the status indicator comprises a “ single point ” indicator having an indicator window that displays the color “ green ” when the automatic inflator is fully operational or the color “ red ” when the inflator is at least partially inoperable automatically due to the removal of the gas cylinder or due to the firing of the inflator resulting in a spent gas cylinder .