Kidde Hardwired 120-Volt TruSense Smoke and Carbon Monoxide Detector with Voice Alert

TruSense technology differentiates between truly threatening fast-flaming or smoldering fires and nuisances such as burning food. As particles enter the alarm, the size of the particles is analyzed by a series of algorithms and consolidated into ratios to determine if these particles stem from a real fire or a nuisance source. Meets the new UL217 8th edition. This product is designed to detect products of combustion using a multi-criteria optical sensor (MCO) and carbon monoxide using electrochemical technology.