The VDR collects data from the sensors on board the vessel and stores it in an externally mounted Crash Survivable Module (CSM). The CSM is a tamperproof unit designted to withstand the extreme shock, impact, pressure and heat, which could be associated with a maritime incident. The CSM may be retrieved from the vessel and the stored data replayed by the authorities for investigative purposes. Features Compact and lightweight Crash Survivable Module (CSM) and Data Acquisition unit (DAU) Space saving, modular design makes it ideal for all classes of vessels including high speed ferries. Removable Storage Unit White Box) records 30 days of data and allows the ship's history to be archived ashore (option). Office PC Playback Software for training and monitoring purposes (option) Replay option displays sensor information and ship's movements on an electronic chart background with playback of recorded audio. Remote LCD Real Time Display (RTD) - providing conning information Integral and optional Remote Status and Alarm Module (SAM) *Black Box' CSM data for the last 12 hours using solidstate memory and an acoustic beacon to aid underwater location (38 hour option is available) Integral UPS for up to 2 hours of data recording AC and 24V DC Operation (option)