Knox Safety carbon monoxide alarms
2 reports to CPSC, the latest made Feb 18, 2024. A report isn’t a recall.
Watch and the shortlist are kept with a free account, on every device. Your watch list. CPSC’s own search is on saferproducts.gov.
At a glance
From SaferProducts.gov, released Oct 25, 2026.
- 2reports to CPSC
- Feb 18, 2024the latest report was made
- Nov 1, 2021the earliest
- 1with the company’s comments
- Brand
- Knox Safety
- Maker
- Knox SafetyMakers, importers or sellers, as the reports name them
- Product
- Carbon monoxide alarmsCPSC’s product type: Carbon Monoxide Detectors (code 712), in Home Maintenance and Structures: Home Security
By month
The numbers, as a table
| Month | Reports |
|---|---|
| February 2024 | 1 |
| November 2021 | 1 |
How badly anyone was hurt
- No one hurt 1 CPSC: Incident, No Injury
- No incident, no one hurt 1 CPSC: No Incident, No Injury
As each report says it, in short words; CPSC’s own words are under each.
The reports, as CPSC published them
Reports people made to the U.S. Consumer Product Safety Commission. CPSC publishes each one after sending it to the company named, and doesn’t guarantee they’re accurate. A report isn’t a recall.
Each report is the words of the person who made it, as CPSC published them. The company’s comments, where CPSC published any, are set apart as the company’s own.
CPSC, SaferProducts.gov public database export. Released Oct 25, 2026. Updated daily.
-
No incident, no one hurt Made Feb 18, 2024, sent to the company Feb 27, 2024, published by CPSC Mar 12, 2024
The product, in the report: Knox Safety Single Station Carbon Monoxide Alarm, White, Model No. 7000 Unit KNX-7000BRC-1-REV15 Manufactured December 02, 2021 Mexico 1872
Knox Safety Carbon Monoxide Alarm, Model 7000, 10 year guaranteed non-replaceable battery manufactured December 02, 2021 and installed for use on December 13, 2023 lasted approximately 2 months before the battery died. Upon researching this unit, I found many others with similar experiences of battery failures after a few months of operation and other units that arrived to consumers unusable, as shown here: [REDACTED] While there were no injuries in my case, I have grave concerns that someone may be harmed by this product due to the batteries failing well before the guaranteed time.
- Model
- 7000
- Serial number
- KNX-7000BRC-1-REV15
- Bought from
- Menards, Iowa
- Bought
- Dec 13, 2023
- Where
- Monroe, Iowa: Home/
Apartment/ Condominium - Who was involved
- Age 51, Unspecified
- The reporter’s relation to them
- My Parent
- As this report names them
- Brand Knox Safety, made or sold by Knox Safety
- How badly, in CPSC’s words
- No Incident, No Injury
-
No one hurt Made Nov 1, 2021, sent to the company Nov 17, 2021, published by CPSC Dec 2, 2021
The product, in the report: Knox Safety Model 7200 single station home Carbon Monoxide alarm, 120volt with battery backup Model 7200 UPC 68061
The Knox Safety 7200 CO alarm I bought at Walmart on Oct 14, 2021 (serial #2335), stopped working 11 days after activation on Oct 25 without giving any audio or visual warning--but while still showing 0 ppm constantly, as if it was working fine. This is an extremely dangerous and potentially deadly failure mode that should not occur! It’s been stuck like this for a week now: pushing the 3 function buttons has no effect, and neither the display nor the voice messages respond to CO exposure. It failed while on battery power although the battery appears to still be working and plugging it in again did not fix anything. Looking at the unit, the only clue it is not working is that the display shows 3 icons next to 0 PPM, for Danger, Call 911, and Exit. This combination is not described in the manual, which says a trash can icon with the word REPLACE should display when the unit fails for any reason. I emailed 4 key staff at Knox Safety a pic of the failed display along with a list of over a dozen other problems, asking for a replacement under warranty and urging a nationwide recall, but got no reply. Among the other problems (which I also found in a 2nd 7200 unit, serial # 2549) are A) they displayed 0 when exposed together (along with a calibrated professional CO detector) under a glass bowl to CO in the range of 30 to 50 ppm for 20 minutes; B) when exposed to CO over 1000ppm, both displays showed a 4-digit level once, after which they cut off the right digit, so 1234 displays as 123; C) the double beep/flash warning that a “low level” of CO has been detected (before the full alarm with starts) repeats every 60 seconds, not every 10 seconds as the manual says, nor every 30 seconds as the label on back of alarm says; and D) when plugged in, they emit a high pitched whine that is very irritating, and this is still present in the unit that failed. I have attached a table comparing the Knox 7200 with other UL2034 alarms to how they differ in other important respects. (Full disclosure: I am a consulting toxicologist who specializes in CO poisoning, but I have no affiliation with any home CO alarm companies and am filing this incident report on my own behalf.)
- Model
- 7200
- UPC
- 68061
- Serial number
- 2335
- Bought from
- Walmart
- Where
- Hyattsville, Maryland: Home/
Apartment/ Condominium - Who was involved
- Age 63, Male
- The reporter’s relation to them
- Unspecified
- As this report names them
- Brand Knox Safety, made or sold by Knox Safety
- How badly, in CPSC’s words
- Incident, No Injury
CPSC’s disclaimer
Disclaimer: CPSC does not guarantee the accuracy, completeness, or adequacy of the contents of the Publicly Available Consumer Product Safety Information Database on SaferProducts.gov, particularly with respect to information submitted by people outside of CPSC.
Word for word, from the disclaimer in CPSC’s export.
Sources
Sources
-
U.S. Consumer Product Safety Commission, SaferProducts.gov public database export.
Released Oct 25, 2026 and checked Oct 25, 2026. Updated daily. Public domain (U.S. Government work). CPSC asks to be credited, and that no endorsement be implied.
Reports of harm are from the U.S. Consumer Product Safety Commission (CPSC), on SaferProducts.gov. CPSC does not endorse Hearth Record.