The Resmed CD-12 converter allows you to operate any Resmed S10 device from a 12v or 24v DC power source in a boat or campervan etc.
This new converter includes barrel plug and battery terminal to barrel plug options.
Please note only the ResMed DC-Converter should be used with ResMed S10 CPAP machines.
Resmed Information Sheet? link is on front page of this 12 volt cpap category as it applies to most machines.