Plugin Carbon Monoxide Detector with 10-Year Battery Backup

Knox Safety Plugin Carbon Monoxide Detector with 10-Year Battery Backup Knox Safety box is unopened- 100% brand new. About this item: • Enhanced Voice Alerts - Alarm clearly communicates 22 separate warnings and emergency instructions • Intelligent Display - provides current alarm status and easy-to-read emergency response instructions • Size: 2-4 (US) • 10-Year Never Replace Battery backup - Lasts the life of the alarm • Multi-Language - Alerts in English or Spanish at the push of a button • TRIO Warning System - Alerts, informs and directs you in an emergency • 10-year Warranty • Conforms to UL STD 2034