 Introducing the Honeywell 5800 combo detector. The industry's first wireless smoke and carbon monoxide detector that's professionally installed and monitored. Fast installation and advanced dual protection. The 5800 combo is the sound choice for every job. Maximize safety with clear spoken alerts in multiple languages. Warning. Smoke. Evacuate. And a ring of dual colored LEDs that show alarms when they happen. Forget the hassle of installing two devices. The 5800 combo saves you time and money on every installation. And by using multiple sensors to identify smoke and carbon monoxide it provides fast, accurate detection with fewer false alarms. The 5800 combo is compatible with any Honeywell security platform offering long term performance for years of reliable service. The Honeywell 5800 combo detector when you lead with life safety, you lead with peace of mind. A choice that speaks for itself.