Customer Reviews For The USI Digital Display Plug-In 2-in-1 CO and Natural Gas Smart Alarm
Timothy U
March 10, 2023Dual gas alarm
As advertised. Arrived quickly. Hopefully it works if there is ever co2 or natural gas in house
Kathy S
October 24, 2022So far it works well!! No problems at all!!
Barry S
July 16, 2022CO and Natural Gas Detector
Items performed as advertised
Derek N
February 14, 2022Great peace of mind
Installed near our living room where the gas fireplace is. You just never know when things could happen, it's good to know that this unit is there to alert us.
Elizabeth B
December 29, 2021Simplicity is the word!
It couldn't be easier to be protected from the deadly airborne killers, carbon monoxide and natural gas. Simply plug it into a wall socket, set an expiration date on your iPhone and your good to go. Just forget about it!
Ronald G
November 21, 2021Great Product
I find the product to be exactly what i needed in the house. I have a generator & this product fits perfectly. Fast delivery & easy to install. Certainly creates peace of mind in the entire house, knowing it is working to keep the family saye. Thank You.
William B
November 19, 2021Universal Security Instruments Plug-In 2-in-1 Carbon Monoxide and Natural Gas Smart Alarm
It is hard to test a Carbon Monoxide and Natural Gas monitor, but the Unit quality appears to be high and the packaging was very minimal.
Ronald G
November 4, 2021Great Product
Received the product quickly. Very easy to install & provides the security I need within the house. Really like the 2 in 1 feature with the battery backup, adds the safety & peace of mind for the family. Thanks.
Jennifer W
October 18, 2021CO and CH4
Hasn't been needed yet but install went well.
Raghava C
October 11, 2021Nice product
It was easy to set up and it is working fine.
Bill M
October 8, 2021owner
I have used these for years, and replaced existing units that expired.Plus the multi detection feature is additional protection
Evanthia C
September 8, 2021great product
works as indicated and very easy to use and understand.
Steven Roberts
May 10, 2020Nice unit
Item was well packed and seems good quality.
David Marco
May 6, 2020Product worked well...delivery was quick, installation went well. Easy online ordering.
Deborah Laurain
February 6, 2020Carbon monoxide alarm
This product is excellent. I have had this in my home for many years and I trust it will keep my family safe. I like that it detects 2 dangerous factors gas and carbon monoxide!
David Langston
January 16, 2020Works well as per documentation, no false alarms
It works correctly. There have been no false alarms, but apparently I have no CO or CH4 in my furnace/laundry room either, so I can't evaluate those functions. Tested the alarm test at a peak level of 116 dBA with a sound meter. That should wake me up if it ever really alarms.
Robert Gilliam
November 28, 2019Easy Installation
Since most outlets are 2 or less from the floor, I installed a duplex outlet about 12 above a light switch on the wall. Easy using an old work junction box. This solved the correct height debate by placing it halfway up the wall. Plugged in the detector and Voila!
Ronald Carver
September 17, 2019CO and Nat Gas Wall Device
Excellent product at a great price.
Jeffrey Muehring
April 10, 2019For the price, It's better than any detector sold in a retail store.
Thomas Petray
September 8, 2018Carbon Monoxide/Natural Gas Alarm Working well
Kept getting some various alarm sounds and different numeral codes, but it stopped after the third reset and appears to be working quite well now.
- If the Alarm is exposed to 400 ppm of CO, it must alarm between 4 and 15 minutes.
- If the Alarm is exposed to 150 ppm of CO, it must alarm between 10 and 50 minutes.
- If the Alarm is exposed to 70 ppm of CO, it must alarm between 60 and 240 minutes.
The Universal Security Instruments Electric MCND401 Plug-In Carbon Monoxide and Natural Gas Smart Alarm provides dual protection against two deadly threats: carbon monoxide and natural gas. This innovative 2-in-1 device simplifies installation while safeguarding your home and family. The compact plug-in design conveniently fits into any standard outlet, requiring no professional installation. This makes the alarm ideal for homes, apartments, or mobile homes.
- Digital Display: This alarm features a digital display that shows real-time carbon monoxide (CO) levels in parts per million (PPM). This allows you to monitor CO concentration and take immediate action if levels exceed safety thresholds.
- Microprocessor Intelligence: The 2-in-1 alarm utilizes microprocessor software to analyze readings and minimize false alarms. This ensures reliable detection while reducing unnecessary disruptions.
- Peak CO Level Memory: This detector can record peak CO levels, aiding in identifying potential CO sources or trends.
- Natural Gas Detection: The unit can detect the presence of natural gas, providing early warning of potential hazards.
- Visual Gas Indicator: The alarm's display will indicate "GAS" when a natural gas leak is detected.
- End-of-Service Life Warning: This 2-in-1 carbon monoxide and natural gas detector provides an alert when it reaches the end of its lifespan (approximately 7 years from activation). A 9-volt alkaline battery (included) continues protection in the event of a power outage.
This USI Carbon Monoxide and Natural Gas Detector is ETL Listed to UL Standard 2034 & UL1484, California State Fire Marshal approved and Federal Housing Authority (FHA) approved to exceed industry standards. For maximum protection, install an alarm inside every bedroom, outside every sleeping area and on all levels of the dwelling. The Universal Security Instruments Electric MCND401 Plug-In Carbon Monoxide and Natural Gas Smart Alarm comes with a 5 year limited warranty.
Recommended replacement for the following obsolete models:- CD-9690
