Not every danger breaks in through a window. Fire and life safety detectors watch for smoke, rapidly rising temperature, carbon monoxide and water leaks — around the clock, whether the security system is armed or not. Every reading is double-checked before an alarm is raised, so you get warnings you can trust.

Detectors combine into a single network: when one senses danger, every siren in the building fires at once and your phone knows within a second. Leak sensors can go further and shut off the water supply automatically. Choose a direction below.