Tiny tech can offer big safety benefits in homes and apartments without spending too much or getting in the way. Here are my ...

The most common motion sensor we see in cameras is a passive infrared (PIR) sensor, which detects heat (infrared energy) that humans and animals release from their bodies. Night Vision.

These smart outdoor floodlight security cameras from Ring, Arlo, Google Nest, and Eve can help keep your home safe and secure.

A motion sensor activates the light when it detects something moving within its field of view. Photocells work with a resistor that changes its conductivity based on how many photons are hitting it.

The new Eve Motion costs $39.95, which is $10 less than the previous version and its closest competitor, the Philips Hue Motion Sensor (which uses Zigbee and also monitors temperature).