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

