M120 Fingertip pulse oximeter, based on all digital technologies, is a non-invasive detection method for SpO2 and pulse rate. This product is suitable for families, hospitals (including internal medicine, surgery, anesthesia, pediatrics, etc.), oxygen bars, social medical organizations, sports, etc.■ Using advanced blood oxygen algorithm, with good Anti-Jitter. ■ Adopt Dual-color OLED display, 4 interface display, display test value and blood oxygenation graph at the same time. ■ According to the data needs of patient observation, the display interface can be manually pressed to change the display direction. ■ The product has low power consumption, with two AAA batteries that can last for 30 hours. ■ Good low-weak perfusion: ≤0.3%. ■ When the blood oxygen and pulse rate exceed the range, the buzzer alarm can be set, and the upper and lower limits of the blood oxygen and pulse rate alarm can be set in the menu. ■ When the battery power is too low and normal use is affected, the Visual window will have a low voltage warning indicator. ■ When no signal is generated, the product will automatically shut down after 16 seconds. ■ Small size, light weight, easy to carry.Always read & follow the instructions for use & health warnings. Consult your health professional to evaluate the readings. Please see instruction manual for full list of warnings. ● Prolonged use or depending on the patient's condition may require changing the sensor site periodically. Change sensor site and check skin integrity, circulatory status and correct alignment at least every 2 hours ● SpO2 measurements may be adversely affected in the presence of high ambient light. Shield the sensor area if necessary ● The following will cause interference to the testing accuracy of the Pulse Oximeter: 1. High-frequency electrosurgical equipment 2. Placement of the sensor on an extremity with a blood pressure cuff, arterial catheter, or intravascular line 3. Patients with hypotension, severe vasoconstriction, severe anaemia or hypothermia 4. The patient is in cardiac arrest or is in shock 5. Fingernail polish or false fingernails may cause inaccurate SpO2 readings ● Keep out of reach of children. Contains small parts that may cause a choking hazard if swallowed ● The device cannot be used in children less than 1 year old as the result may not be accurate ● Do not use a mobile phone or other devices that emit electromagnetic fields, near the unit. This may result in incorrect operation of the unit ● Do not use this monitor in areas containing high frequency (HF) surgical equipment, magnetic resonance imaging (MRI) equipment, computerized tomography (CT) scanners or in a flammable atmosphere ● Follow the battery instructions carefully