ESPERANZA FINGER PULSE OXIMETER

ESPERANZA FINGER PULSE OXIMETER. Supply voltage: 3V
Operating current: ≤40mA
SpO2 parameter: Measuring range: 35% - 100% Accuracy: 70% - 100% ± 3%
Pulse rate: Measuring range: 30bpm - 240bpm Parameter accuracy: ± 2bpm or ± 2%
Operation temperature: 41°F - 104°F (5°C - 40°C)
Environment humidity: 30% - 80%
Pressure: 70kPa - 106kPa
Performance under low perfusion condition : Same with modulation amplitude as low as 0.2%
Resistance to light interference: ± 1%
Resistance to 50Hz/60Hz interference: Precise
Power supply: 2 x AAA batteries 1.5V (not included in package)