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 ...

Looking for an alarm system to make you feel more secure? We've tested all the top professional and DIY home security systems to help you decide which is right to protect your family and property.

At CNET, we've spent well over 200 hours testing cams from the top brands. My final choice was the newest 3rd-gen Nest Indoor Cam, a more compact version that increases the resolution to 2K and adds ...