CNET’s expert staff reviews and rates dozens of new products and services each month, building on more than a quarter century of expertise. I had never seen a sensor like Aqara's new P100 before, but ...

Amanda Blum is a freelancer who writes about smart home technology, gardening, and food preservation. Previously, Amanda has worked as a technology strategist specializing in problem solving and ...

Door sensors detect door position (i.e., open or closed) based on the precise gap between the magnet and the reed switch.

I’ve been writing about smoke detectors for a few years. That often involves researching fire statistics, so when I see something like the fact that the death rate from a fire is 60 percent lower in ...