Called MouthLab, the device uses mouthpiece and thumb pad sensors to quickly test a patient's blood pressure, breathing, blood oxygen, heart rate and heartbeat pattern. Called MouthLab, the device ...

Modern car engine control systems rely on input from several sensors to regulate the engine’s performance as well as its emissions and other vital functions. When these sensors fail to provide ...

Q: I have a check-engine light that comes on after 50 miles or so and the fault code is 44 — that is bad oxygen sensor. I have changed both sensors, but the check engine light comes on with the same ...