Universal Security Instruments CD-9490 120-Volt AC/DC Wired-In Carbon Monoxide Alarm
[ReviewAZON asin="B002EVORWK"] Universal Security Instruments CD-9490-This 85db unit is hard wired but has a battery backup included with the detector. __________________________________________________________________________________
Universal Security Instruments CD-9590 3-LED Plug-in Carbon Monoxide Alarm with Battery Backup/Drawer
[ReviewAZON asin="B002EVORP2"] Universal Security Instruments CD-9590- This great plug and go unit comes with a nine volt backup power source. 3 led indicators for easy use. __________________________________________________________________________________
Universal Security Instruments CD-9000 9-Volt Battery-Operated Carbon Monoxide Alarm
[ReviewAZON asin="B0001WGMGS"] Universal Security Instruments CD-9000- No wiring 9 volt battery included. Easy installation. Low battery warning. __________________________________________________________________________________
Universal Security Instruments CD-9385 120-Volt AC Wired-In 3-LED Interconnectable Carbon Monoxide Alarm
[ReviewAZON asin="B0028UIS6I"] Universal Security Instruments CD-9385-This hard wired unit is Interconnectable. You can hook up mutiple units. If one detects a problem all the alarms will sound. This is a great unit for two and three story homes. __________________________________________________________________________________
Universal Security Instruments CD-9390 120-Volt AC/DC Wired-In 3-LED Interconnectable Carbon Monoxide Alarm
[ReviewAZON asin="B0028UOO2U"] Universal Security Instruments CD-9390-Nine volt battery backup included. his is is also interconnectable to multiple units. __________________________________________________________________________________
Universal Security Instruments CD-9690 3-LED Plug-In Carbon Monoxide Alarm with Digital Display and Peak CO Level Memory
[ReviewAZON asin="B0026T5T40"] Universal Security Instruments CD-9690- CO level memory,led for easy reading. Plug and go unit. Battery backup. __________________________________________________________________________________