SpO₂
Measurement Range 0% – 100% (resolution 1%)
Accuracy ±2% (70%–100%); unspecified below 70%
Pulse Rate (PR)
Measurement Range 30 – 250 bpm (resolution 1 bpm)
Accuracy ±2 bpm or ±2% (whichever greater)
Low Perfusion & Interference
Low Perfusion Performance Operable at low perfusion 0.4%; SpO₂ error ±4%, PR error ±2 bpm or ±2%
Light Interference Deviation vs darkroom < ±1% under normal/ambient light
Power & Safety
Power Consumption ≤ 100 mA
Working Voltage DC 3 V
Battery Two "AAA" batteries
Safety Class Internally powered equipment, Type BF applied part