Two parameters???SPO2, Pulse Rate.
1???Tiny, light, "all-in-one" integrated clip design, easy for carrying;
2???LED screen with SpO2, PR and Pulse strength measurements;
3???Immediately, real-time spot-check;
4???Single button interface, easy for operation,
5???Common AAA alkaline or rechargeable batteries to support 3 continuous working hours;
6???Low battery power indicator;