I've reviewed security systems from all major brands. Here are my most important recommendations when you're ready to set up your own.

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Dave Gershgorn Dave Gershgorn is a writer covering monitors, laptops, and ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› Apple just announced a slew of new devices, including its cheapest MacBook ever.

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 ...