... drive (2-CH), Snoring, Body position, CPAP pressure, Patient event, Battery, Recording time Screen 3.1 inches LCD with backlit Display ... , Pulse rate, Airflow, Respiratory drive (2-CH), Snoring, Body position, Battery, Date and timeLanguage Chinese, English and French Memory > 12 hours ... 37mm (H) Weight 350g Power Supply DC 3V (2 X R6 AA) Sleep Apnea Monitor