20
Working voltage
DC 2.6 V ~ 3.6 V
Working current
≤ 30 mA
Power supply
1.5 V (AAA size) alkaline batteries × 2
Operation time
The device can continuously work for 20 hours when it was powered by two
new batteries within the warranty period.
Dimension and Weight
Dimension
57(L) × 31(W) × 32(H) mm
Weight
About 50 g (with the batteries)
Note 1: The claims of SpO
2
accuracy shall be supported by clinical study measure-
ments taken over the full range. By artificial inducing, get the stable oxygen level to
the range of 70 % to 100 % SpO
2
, compare the SpO
2
values collected by the second-
ary standard pulse oximeter equipment and the tested equipment at the same time,
to form paired data, which are used for the accuracy analysis.
There are 12 healthy volunteers (male: 6. female: 6; age: 18~50; skin color: black: 2,
light: 8, white: 2) data in the clinical report.
Note 2: Because pulse oximeter equipment measurements are statistically distrib-
uted, only about two-thirds of pulse oximeter equipment measurements can be
expected to fall within ±Arms of the value measured by a CO-OXIMETER.
Note 3: Patient simulator has been used to verify the pulse rate accuracy, it is stated
as the root-mean-square difference between the PR measurement value and the
value set by simulator.
Note 4: Percentage modulation of infrared signal as the indication of pulsating sig-
nal strength, patient simulator has been used to verify its accuracy under conditions
of low perfusion. SpO2 and PR values are different due to low signal conditions,