The sensor belt appears to be solid made, according to the video on Alibaba:
https://www.alibaba.com/product-detail/Taidacent-Smart-Mattress-Breathing-Sleep-Belt_60856585653.htmlthere was once a demo video available on Alibaba of a person using this sensor and testing it. He was showing the sensor data on the screen. So the manufacturer must have PC software for this belt. Will there be a commercial product some day?
Unfortunately, it is not possible to ask questions on Alibaba for me personally, since I am not a reseller, It is only possible for sellers. Maybe a reseller is interested in this product? I only saw it on Alibaba.
An Adinstruments setup with respiratory belt and software is around 2000 USD, estimated, and non-wearable:
There are several respiratory sensors available from Bitalino Physioplus, starting from USD 100. There are models available, for 400 to 600 USD, the prize depends on the bit rate, the Bitalino support told me. And there is a complete respiBAN Professional available:
https://plux.info/biosignalsplux-wearables/313-respiban-professional-820202407.htmlBut all of these devices depend on microcontrollers. Since the availablity of the sensor belt with a Bluetooth transmitter, it is not far ahead for a consumer product for everyday use at an affordable price.
But the only one which can do this is the Chinese manufacturer Taidacent, which has all the components.
The second option would be to build it yourself with the sensor belt and Scott Hardens, PhD circuit. Scott gave the green light for it.
Or maybe another device developer is interested in developing a respiratory sensor device, and negotiates with Taidacent about these components?
Is it not a pitty, that all the components for an affordable respiratory sensor for everyday use are available, but nobody brings such a device on the market?