Discover the top smoke alarms for 2025 — from smart interlinked systems to silent, long-life guardians — and find the best fit for your home safety needs.

Interested in Kidde’s Firex smoke alarms and safety devices? Read customer reviews and learn about device availability, product lifespan and more.

Light sensors detect the presence or absence of light, and the intensity of that light. These sensors then convert light ...

If there’s one thing that should be common knowledge but sadly isn’t, it’s this: smoke alarms don’t last forever.

Detecting transient radiant expanding flares is crucial for assessing the status of key devices like Hall thrusters, for which real-time detection is vital to maintain satellite stability in orbit.

The University of Pennsylvania's independent student news organization.

Among a plethora of options to choose from, here are the six best hard-wired smoke detectors from our testing. Take a peek!