The Sentinel SCM (Sentinel Control Module) is a cash management product that includes cassettes that hold 2,250 notes or 1,200 notes. It can also be arranged with a Sidecar to add up to two additional note validators. They can be single or bulk note feeders. Retailers can easily fix note jams by removing the validator. Sentinel offers Windows-based software and provides secure, two-way communication between Sentinel, POS and back office reporting systems. It allows retailers to view and download transactional data or reports, install new currency update, download software enhancements or transfer status indicators.