Continuous measuring of respiration during anaesthesia. Every breath is marked by a beep and by indicating a light in the green lamp. The alarm is set off automatically in the event of respiratory arrest. Special features: Large digital display, shows apnoea settings for 5, 10, 20, 25 and 30 sec. Starts automatically by showing the previous apnoea time. Integrated rechargeable battery. Indicator lamps for respiration, low battery and r echarge, respectively. Beep sound can be disconnected.