a common SpO2 sensor like Mindray 512F is very simple structure.

it consits of a photodetetor, an emitter with 660/905nm light.

it detects the light after absorbtion through detected spot like finger or infant feet.

more complicated sensors like Masimo, Nellcor will build more complicated chips inside the connector for calibrating or identfication

so, if a SpO2 sensor not working we are going to study the materials and the handicrafts procedures.

1, problem from the emitter

if you plug the sensor and no light comes, (make sure the machine is in good condition and extension cable in good condition) this problem is usually from the emitter, so you have to replace the sensor

2, problem from the photodetector

if you plug the snesor, there is light, but no reading, (make sure the machine is in good condition and extension cable in good condition)

usually the problem is from the photodetector

3, also, please check the wires, if there is apparent damage in the wire jacket, try to replace it as soon as possible

4, finally, if you say, ok, this is a new sensor, but it is not working. in most cases, this is because of compatiblities.

for example, many sensors, like Mindray old models, are made from 6 pins round connector with dual bits, but some sensors are totally different, but you can plug in. for example you can plug a Mindray MEC1200 sensor into General Meditech G3D machine, and it will not work. because their inner structure is totally different.

if you have more doubt or if you have more compatiblity problems please contact PanSW, we can help you solve those problems. We have many years exprierence in this specific segment.

Please feel free to contact PanSW if there is any doubt or further questions.

18h*6d technical support, products consultion, please contact PanSW for the specific cable you need and avoid mistake and unnecessary cost.