Introduction - If you have any usage issues, please Google them yourself
Overall, the sleep apnea monitor thermal sensor in the hot and cold water to convert the output pulse wave, and count, you can achieve every minute count is cleared, 10s bell does not convert the continuous alarm. But the disadvantages are also obvious, due to thermal sensor sensitivity and stability, the device can not be a true measure of the number of human respiratory biggest regret. Other advantages of this device is embodied in the circuit diagram of a simple, cheap cost, easy to operate.