Oxygen pulse oximeter

ECO001 Oxygen Pulse Oximeter
The Esperanza pulse oximeter allows quick, easy, and painless health monitoring wherever and whenever you want. Simply place it on your finger and read results such as pulse and blood oxygen level within 3 seconds.
Technical data:
SpO2 parameter: Measurement range: 35% – 100%
Accuracy: 70% – 100% ± 3%
Normal range: 96% – 99%
Pulse rate: Measurement range: 30 beats/min – 250 beats/min (± 2 beats/min ± 2%)
Ambient temperature: 5°C – 40°C (41°F – 104°F)
Ambient humidity: 15% – 80%
Pressure: 86Pa – 106kPa
Low perfusion operation: same, with amplitude modulation of only 0.2%
Resistance to light interference: ± 1%
Resistance to 50Hz/60Hz interference: precise
Power supply: battery 2xAAA – batteries included (1.5V)
Supply voltage: 3V
Current consumption: ≤30mA