The PD-1700 from Zoll has an ALS Manual Override switch from BLS semi-automatic to manual full-featured operation, which means it can function as a manual defib or an AED. The ECG displays, voice prompts, auto reanalyze, energy levels, etc. can be adapted to all skill levels. The PD-1700 records resuscitation data for QA review, transfer to PC, and stat analysis by Zoll Data Control Software™. These refurbished units from DRE are powered by AC or batteries and is 17 lbs with charger.