The Spo2  sensor will affect the accuracy of blood oxygen measurement, so what factors should we consider when choosing a Spo2 sensor? To find the right oximeter, there are four factors to consider when choosing an oximeter sensor:

User characteristics

The age, weight and use site of the user will affect our choice of spo2 sensor type. Choosing an inappropriate size will not only make the patient uncomfortable during use, but also lead to inaccurate measurements. In general, we divide the sensor types into newborns, infants, children and adults. But when the patient is between two age groups, such as the patient is 14 years old, we cannot classify him as a child, nor can we say that he is an adult. At this time, we need to consider the weight of the patient to select the type of blood oxygen sensor.

for which part

As we know, Spo2 sensor can be used on different body parts such as fingers, head, toes, feet, ears and forehead. Sensors are designed differently for different body parts. We need to select different parts to measure according to the patient's age characteristics and vital characteristics. Such as newborns, we generally use the binding style for the toes.

Monitoring duration

According to the length of monitoring time, we divide blood oxygen measurement into point measurement, short-term measurement to continuous measurement. Doctors need to choose a blood oxygen sensor according to the measurement time.

A repeatable finger-clip oximeter can be used to reduce waste when spotting patients.

Short-term monitoring, because the monitoring time is longer at this time, and the comfort of the patient needs to be considered at this time, we can choose a sensor with a soft texture.

Continuous measurement, for patients who require long-term monitoring, our general response is those who are critically ill. At this time we need to consider the use of a disposable soft blood oxygen probe to ensure wearing comfort, breathability and ease of use.


Repeated use of the oximeter will be used on different patients. Since the probe is in direct contact with the patient's skin, mutual infection may occur. Therefore, when using reusable probes, they must be carefully disinfected and cleaned to reduce the risk of cross-contamination. For high-risk departments, the use of disposable Spo2 sensor is recommended.

Use certified sensors

When choosing a Spo2 sensor, you must pay attention to the blood oxygen technology to ensure that it is a market-certified sensor. All szmedplus sensors use brand-backed technology, the quality is equivalent to the original products, and have been recognized by our hospital customers, you can choose with confidence.