Your smoke alarm’s chirp can be oddly reassuring, a small sound that suggests everything is still working. Yet the device ...

CNET staff -- not advertisers, partners or business interests -- determine how we review products and services. If you buy through our links, we may earn a commission. Properly installed smoke ...

At a glance Expert's Rating Pros ・Very quick to alert on smoke ・Easy to set up (assuming you have the infrastructure) ・Some ...

A test of new or repaired equipment by turning it on. If it smokes... it is not working! Originally coined when smoke was introduced to check for leaks in newly manufactured containers and pipes, the ...