Main features:
Pulse oximeter is a device that can be used both at home and during sports activities. Jziki easily and quickly measures pulse and oxygen content in the body. 
- Brand: Jziki;
- Model: JZK-301;
- Type: Fingertip oximeter-pulse monitor;
- LED display;
- Measurement time: 8 seconds;
- Saturation: 2%;
- Battery: AAAx2 (1.5V);
- Battery life: 20 hours;
- Age: from 4 years old;
- Size: 6 x 3.5 x 3 cm;
- Weight: 27 g;
- Color: blue/white with inserts;
Recommendations:
- Avoid use in the sun;
- Do not move during the measurement;
- The pulse monitor is not for use by children and infants under 4 years of age;
- The finger you are measuring with should be clean (from nail polish and cosmetics);
- The measuring fingertip should be on the side of the device's screen, not the other way around ( see photo );