Customer Reviews For The USI Electric Hardwired 2-in-1 CO and Natural Gas Alarm, Battery Backup

70 Reviews

4.9 Overall rating

Michael H
October 28, 2022
Verified Purchase

Delivery was on time and they had the product that I needed.

Michael H
October 26, 2022
Verified Purchase

Delivery was on time and they had the product that I needed.

Stephen M
August 18, 2022
Verified Purchase

Easy to install. No programming required. Simple read out

Barry S
July 16, 2022
Verified Purchase
CO and Natural Gas Detector

Item performed as stated

Helen B
June 16, 2022
Verified Purchase


David L
February 27, 2022
Verified Purchase
USI Electric Carbon Monoxide and Natural Gas

This alarm replaced my previous hard-wired USI Carbon Monoxide alarm. It was reasonably priced and delivered to my home on time. It was very easy to install as the electrical connector was the same as my previous model. It also detects Natural Gas as an added bonus. Overall, I am very pleased with this purchase and would recommend it.

Alberto N
December 31, 2021
Verified Purchase
Good Experience

Good experience ordering on website. Delivery of product and product itself.

Kris J
November 17, 2021
Verified Purchase
Good product

Product works great

Ross K
November 9, 2021
Verified Purchase
Smoke replacement

I was pleasantly surprised this company was still producing after there product has been in homes.for 10 years. Thanks for providing me a 1 for 1 swap option you saved me a lot of time.

James D
October 21, 2021
Verified Purchase
USI Product and Service

Typical quality product from USI, with a good selection of options and ease of installation. I continue to purchase from Universal because of their excellent customer service, very prompt order fulfillment and shipping.

Michael A
April 12, 2021
Verified Purchase
Outstanding alarm

So I was trying to exactly match the CO2/gas alarm we had and this one was the exact match. The alarm arrived promptly and works great!

Karl Gontkof
November 12, 2020
Verified Purchase
MCN108 2-in-1 CO2 & Natural Gas Alarm

I have used the USI 2-in-1 CO2 and Natural Gas models for over 15 years. The product works well, however it doesn't always live a 7 yr life

Debra Stec
July 31, 2020
Verified Purchase

Love them. They work really good.

James Morehouse
July 2, 2020
Verified Purchase
Easy Installation

The alarms in the house I purchased at the end 2018 had these alarms, and I noticed they were already three years out of date, and were still working. I decided to replace them with these from the same company, as they seem to be pretty reliable.

Ralph Stamm
January 20, 2020
Verified Purchase
Replacing existing detector was a snap

This new detector was replacing an existing one, which was at its end of life. The installation was very easy and quick. I will definitely be purchasing any detectors I need from USI in the future.

Jacob Eddy
January 6, 2020
Verified Purchase
Carbon/gas hardwire

Work as advertised and shipped quickly

Stephen Signore
July 1, 2019
Verified Purchase

Perfect product, perfect fit and quick shipment. Highly recommend.

Robert Corwin
July 1, 2019
Verified Purchase

Had no problem with the setup plugged it in at work fine and continues to work fine

Roberta Leevers
February 27, 2019
Verified Purchase
Worked perfectly

These units worked perfectly and were easy to install.

Kris Jones
February 22, 2019
Verified Purchase
CO2 and Nat Gas alarm

This is a very good product. My previous alarm lasted 10 years and this is the newer version of this. Easy to plug in and works great so far.

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