Hearth Record

CPSC Warns Consumers to Immediately Stop Using GLBSUNION and CUZMAK Digital Display Carbon Monoxide Detectors Due to Failure to Alert Consumers to Deadly Carbon Monoxide; Sold on Amazon.com

CPSC warning 23-160. Announced by CPSC on Mar 16, 2023.

  • CPSC warning, not a recall
  • CPSC: stop using it
CPSC’s own warning, on cpsc.gov

Watch and the shortlist are kept with a free account, on every device. Your watch list. CPSC’s own warning is on cpsc.gov.

The short answer

Announced by CPSC on Mar 16, 2023. Copied from CPSC on Oct 25, 2026.

Every line below is in CPSC’s own words, with its source beside it.

What’s wrong with it?

CPSC issued this as a product safety warning, not a recall.

CPSC warns people about a product this way when there is no recall of it. What’s wrong and what to do are below, in CPSC’s words.

Source:

CPSC, Product safety warnings. Released Oct 19, 2026. Updated daily.

Hearth Record wrote these lines.

The CO detectors can fail to alert consumers to the presence of hazardous carbon monoxide. More than 200 people in the United States die every year from accidental, non-fire related CO poisoning associated with consumer products.

Source:

CPSC, Product safety warnings. Released Oct 19, 2026. Updated daily.

What should you do?

CPSC urges consumers not to purchase or sell these CO detectors. Stop using them and dispose of these products immediately and install new, working CO detectors.

Source:

CPSC, Product safety warnings. Released Oct 19, 2026. Updated daily.

Which ones does it cover?

Washington, D.C. -- The U.S. Consumer Product Safety Commission (CPSC) is warning consumers about the risk of carbon monoxide poisoning associated with the use of GLBSUNION and CUZMAK digital display carbon monoxide (CO) detectors. The CO detectors can fail to alert consumers to the presence of hazardous carbon monoxide. More than 200 people in the United States die every year from accidental, non-fire related CO poisoning associated with consumer products.If a CO detector that does not alert to the presence of an elevated level of carbon monoxide is installed in a home, and carbon monoxide enters the home, the consumer will not be warned of this harmful gas, making injury or death very likely. Carbon monoxide sensitivity tests performed on the GLBSUNION and CUZMAK detectors by CPSC found that they failed to alert when exposed to pre-determined concentrations of carbon monoxide (400 ppm), in violation of UL 2034, a voluntary safety standard.The CO detectors are made of white plastic, with approximate dimensions of 4 x 1.5 x 4 inches, featuring a digital display. The CO detectors are advertised to detect dangerous levels of carbon monoxide and alert with a flashing red LED and a loud alarm pattern. Model No. AJ-938 was sold under the Amazon ASIN B093Y1KK5Q and B093Y637CM; and Model No. CD01 was sold under the Amazon ASIN B07MPVK6HG and B07K44HLCV. The CO detectors were sold on Amazon.com for between $16 and $40. CPSC urges consumers not to purchase or sell these CO detectors. Stop using them and dispose of these products immediately and install new, working CO detectors. Report a dangerous product or a product-related injury on www.SaferProducts.gov.Note: Consumers should install CO detectors on each level of their homes and outside separate sleeping areas. CO detectors should be battery operated or have battery backup. Test CO detectors frequently and replace batteries as needed. Consumers should only buy CO detectors that meet the UL 2034 safety standard.Individual Commissioners may have statements related to this topic. Please visit www.cpsc.gov/commissioners to search for statements related to this or other topics.

GLBSUNION and CUZMAK Digital Display Carbon Monoxide (CO) Detectors.

Source:

CPSC, Product safety warnings. Released Oct 19, 2026. Updated daily.

Who made and sold it?

  • The notice names no firm.
  • The CO detectors were sold on Amazon.com for between $16 and $40.
Source:

CPSC, Product safety warnings. Released Oct 19, 2026. Updated daily.

Was anyone hurt?

The notice doesn’t say whether anyone was hurt.

Source:

CPSC, Product safety warnings. Released Oct 19, 2026. Updated daily.

What the record doesn’t say

  • The notice lists no UPCs, so check the model, the description and the photos.
  • The notice lists no model numbers in a field of their own; its description may give them.
  • How many have been returned or fixed isn’t in the notice.
Source:

Hearth Record wrote these lines.

Sources

  • U.S. Consumer Product Safety Commission, Product safety warnings.

    Released Oct 19, 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.

Source:

Recalls of kids’ and home products are from the U.S. Consumer Product Safety Commission (CPSC). CPSC does not endorse Hearth Record. Copied on Oct 25, 2026.

How to read a record

Four things every record does, shown on an example record made up for this guide.

An example record, made up for this guide

An example nursing home

Made up for this guide: no real place is shown

Not fully inspected in over two years (CMS flag)

11 health citations at the latest inspection cycle

The state average is 14.3.

Source:

CMS, State and US Averages and Health Deficiencies. Released Oct 8, 2026. Updated monthly.

From the homeNone yet. Replies and paid listings aren’t open, and when they open they will sit here, below the record.

1 of 4

Every fact names its source.

Who published it, when, and how often it changes sit beside each fact, with a link to the agency’s own file.

Sign in

A free account keeps your watch list, shortlists, comparisons and saved searches on every device, and can email you when something you watch changes. Browsing never needs one.