Modern vehicles are pretty complicated pieces of tech. Apart from emissions and other vital functions, the engine control system relies heavily on several sensors to regulate performance. That is ...

So the O2 sensor (located in a tight space on the engine manifold) on my '86 Accord is putting out 0volts instead of the .4-.6 it should be. And the mechanic wanted 115 dollars to replace it (I'm ...

The blood oxygen sensor featured in Apple Watch Series 6 and 7 is “not intended for medical use,” Apple says. That seems odd, considering that low blood oxygen is a serious medical condition. If the ...

First author Yasser Khan holds the sensor, which is made of an alternating array of printed LEDs and photodetectors that can detect blood-oxygen levels anywhere in the body. (Courtesy: Yasser Khan, ...

There’s a belief that you can use your smartphone to accurately measure your SpO2—that’s your blood oxygen level. And while it would certainly be handy right now to have easy access to that figure—the ...