O2 sensors help gauge whether the engine is running with too much fuel or air. Here's how much you can expect to pay when ...

Oxygen sensors play an important role in your car's engine, but they aren't like many other components, such as oil filters, for which automakers provide a strict service schedule. Instead, the real ...

Wearable devices and smart sensors are transforming how we monitor health and activity, from tracking heartbeats to detecting body movements. However, traditional tools like stethoscopes and fitness ...

Not all poisonous gases have a smell or a color. But a tiny grid of pastel- and candy-colored squares that effectively "sniffs" out hazardous chemicals in the air such as chlorosarin—a highly toxic ...

Scientists developed a smartphone-compatible ethanol sensor using a metal-organic framework called Cu-MOF-74. The sensor visually detects ethanol concentrations across a wide range, with no ...