Kidde KN-SMFM-i Silhouette Hardwire Low Profile Smoke Alarm
No need to worry about faulty batteries with the Kidde KN-SMFM-i Silhouette Low-Profile Smoke Alarm. This no-fuss alarm contains a rechargeable battery that runs off central electricity and lasts the lifetime of the unit. Dependable and easy to install, this no-maintenance alarm saves on labor and material costs over its lifetime. And because this alarm is interconnect-able, builders and do-it-yourself homeowners will quickly discover this is a must-have for remodels and new construction.This alarm uses ionization sensing technology. Ionization sensing alarms may detect invisible fire particles (associated with flaming fires) sooner that photoelectric alarms. Photoelectric sensing alarms may detect visible particles (associated with smoldering fires) sooner than ionization alarms. Kidde strongly recommends that both ionization and photoelectric smoke alarms be installed to help insure maximum detection of the various types of fire that can occur within the home.Rechargeable Batteries Save Money, Time, and LaborThe Kidde Silhouette Low-Profile Smoke Alarm features a rechargeable lithium battery sealed inside the unit that recharges automatically via central electricity. If there is a power outage, the battery will recharge once the electricity is restored. Over the span of the alarm's life, this no-fuss unit saves homeowners money, time, and labor on battery changes. For builders, landlords, hoteliers, and apartment managers, this innovative feature cuts down on callbacks, material, and labor costs.The battery is designed to last the lifetime of the alarm, approximately 10 years. Once the alarm has reached the end of its life, it will chirp every 30 seconds, letting you know it's time for a replacement.