The Kidde Micro 4″ Smoke Alarm (Model i1040) is a compact and reliable safety device designed to provide continuous fire detection for 10 years. Powered by a sealed 3V lithium battery, this smoke alarm eliminates the need for battery replacement, ensuring uninterrupted protection throughout its lifespan. Its ionization sensor is particularly effective in detecting flaming fires, offering early warning to keep your home and family safe.

The alarm features self-activation upon installation, simplifying setup. A built-in Hush® button allows users to silence nuisance alarms temporarily, such as those triggered by cooking or steam, without compromising safety. The test/reset button checks functionality and resets the alarm after a triggering event.

An 85-decibel audio alert ensures that the alarm is loud enough to be heard across the home, while the LED indicator provides status updates in four modes: standby, alarm, Hush®, and memory set. Designed for diverse environments, it operates effectively in temperatures between 40°F and 100°F and tolerates up to 95% humidity. At the end of its life, the unit chirps to indicate the need for replacement and includes a deactivation switch for safe disposal.

With its tamper-resistant, compact design and compliance with UL safety standards, the Kidde i1040 delivers trusted, maintenance-free fire protection.