... with PC based Software - Display mode: Display direction adjustable - Indicator: Power indicator, alarm sound, pulse tone - Interface: Socket for connecting SPO2 sensors and ... size, light weight, convenient to carry - Can be used in: Hospitals, Emergency services, Pre & Post operation, ... range: 25~250 bpmResolution: 1bpmAccuracy: ±3bpm (no motion)Power 2 AA Size Batteries DC 3VSupply voltage ...