Carbon Monoxide Smart Alarm provides 10 years of continuous protection against the silent killer - carbon monoxide.
Sealed battery (included) will never have to be replaced throughout the life of the alarm.
Features microprocessor intelligence to virtually eliminate nuisance alarms.
Digital display screen is bright and easy to read with a red LED light indicating the status of power and CO.
This alarm is suitable for installation in houses, apartments, dormitories, hotels/motels and manufactured housing.
10-year limited warranty on both the alarm and battery.
Meets New Laws & Legislations - This alarm exceeds industry standards, and is listed to UL Standard UL2034 and is California State Fire Marshal approved.
The Universal Security Instruments MCD305SB Carbon Monoxide Smart Alarm provides 10 years of continuous protection against the silent killer - carbon monoxide. Perfect for new or replacement installations, this maintenance-free alarm is suitable for houses, apartments and mobile homes. The sealed battery (included) will never have to be replaced throughout the life of the alarm, giving you a decade's worth in peace of mind even in the event of a power outage.
Permanent Power also saves money from battery replacements (up to $38.00 over the 10-year life of the alarm), eliminates annoying low battery chirps and helps the environment by reducing environmental waste from disposed batteries. This alarm also utilizes microprocessor intelligence that assists in completely eliminating nuisance alarms, a single silence/test button to quiet a non-hazardous alarm and an end-of-service life warning that sounds when it's time to replace the battery (approximately 10-years from activation). The digital display screen is bright and easy to read with a red LED light indicating the status of power and CO.
Mount this alarm on the wall or leave it standing up on a table top. The quick activation battery pull tab makes it easy to install while the deactivation key switches the alarm off and makes the batteries safe for disposal. Once the alarm is deactivated, the tamper resistant feature turns on to prevent deactivated alarms from being reinstalled. This alarm is ETL listed to UL Standard 2034, California State Fire Marshal approved and Federal Housing Authority (FHA) approved while exceeding industry standards. For maximum protection, install an alarm inside every bedroom, outside every sleeping area and on all levels. The Universal Security Instruments MCD305SB Carbon Monoxide Smart Alarm comes with a 10-year limited warranty that covers the battery and alarm.
Warranty: 10-year limited warranty on both the alarm and battery
Alarm Battery: 10 Year Sealed Permanent Power Battery
Alarm Sensor Type: Electrochemical
Manufacturing Credits: ISO 9001 certified factory, UL listed & CSFM listed
Packaging: Easy Open Box Packaging
Product Dimensions (W x H x D): 2.25 x 1.25 x 4.25 in.
USI CO Smart Alarm with 10 Year Sealed Battery and Display Screen (MCD305SB) Video
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USI CO Smart Alarm with 10 Year Sealed Battery and Display Screen (MCD305SB) Reviews
- Reviewed: 02/01/2022 by Rebecca B
Thank you for this product! Once I found this, it is the only one our Fire Department gives out!
It has all the elements that are needed for a competent customer use: digital, 10 year sealed battery, disarm key, not a plug in, versatile to be hung at eye-level. All these features are important to fight this world-wide battle against CO poisoning. Only negative? I wish it was advertised and easier to purchase. Thank you for all you do.
- Reviewed: 03/08/2021 by CH
Excellent quality product
Previously we've used other brands of plug-in CO detectors found at the big box stores -- useless during an electric outage and they failed before the warranty ended. We searched and found USI products. These USI CO Smart Alarms are well made and great value. Love they have a 10 year sealed battery, and can be used tabletop or easily wall mounted. Just added two more to our home. So easy to order, and fast shipping from USI. These last, are well made and give us peace of mind - thank you!!
- Reviewed: 10/07/2019 by William Kantrowitz
Easy to install
The CO alarms came quickly and were easy to install.
- Reviewed: 09/10/2018 by tim marshall
as expected thank you
- Reviewed: 03/05/2018 by Rosemary Burke
No false alarms, has a helpful digital display. Easy to test.
- Reviewed: 12/12/2017 by charles fairless
10 year sealed co monitor
Have used Universal Security CO monitors for years. Decided to try 10 year battery monitor instead of changing batteries every year - after using their 10 year smoke detectors for the past 2 years. Great products..
- Reviewed: 04/03/2017 by Robert Schneiter
Digital carbon monoxide detector
Delivered promptly. Quick and easy to setup. Best part is smart alarm with 10 year sealed battery.
- Reviewed: 12/12/2016 by Michael Allen
So far, so good
- Reviewed: 09/23/2016 by Edward Olson
Small unit that is easy to install.
- Reviewed: 07/08/2016 by Fred Goldenson
Perfect carbon monoxide detector.
This CO2 detector is perfect. I don't have to replace the batteries. I had some questions as to where to place the detector and phone support was very helpful.
- Reviewed: 03/20/2016 by joseph gangloff
Excellent value -- clear instructions
Excellent value -- I did lots of research -- quick, accurate delivery
- Reviewed: 01/27/2016 by Ceil Fox
I like this product.
I was glad to get a product that didn't have the battery replacement issue, a ten year battery is great. I wish the smoke alarm had this kind of battery available.
- Reviewed: 01/12/2016 by Bonnie Steltzer
So far I haven't needed to use it yet. When I reinstalled the battery in the older system it seems to work. No more one beep. I am keeping them until needed.
- Reviewed: 12/09/2015 by John Lutgen
This product was easy to set up. We set them on table tops. We tested them after I pulled the tab to activate them. They are small and very loud. We are very happy with them and would buy them again!