Adam covers home improvements and mobile networks, splitting his time investigating topics from bathrooms to phone contracts. He was shortlisted at the BSME Talent Awards 2024. O2 is one of the big ...

A pulse oximeter measures blood oxygen levels at home and in healthcare settings. Abnormally low readings on a pulse oximeter might require medical care, especially if they are below 92%. Skin color ...

Optical sensors are a broad class of device for detecting light intensity. This can be just a simple component for notifying when ambient light levels rise above or fall below a prescribed level, or a ...