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Tiergrade smoke and carbon monoxide alarms

1 report to CPSC, the latest made Aug 8, 2024. A report isn’t a recall.

Watch it to hear when CPSC publishes new reports about it. CPSC’s own search, on saferproducts.gov

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.

  • 1report to CPSC
  • Aug 8, 2024the latest report was made
  • Aug 8, 2024the earliest
  • 0with the company’s comments
Brand
Tiergrade
Maker
SHENZHEN MIER ELECTRONIC TECHNOLOGY CO., LTD.Makers, importers or sellers, as the reports name them
Product
Smoke and carbon monoxide alarmsBoth in oneCPSC’s product type: Combination Fire/Smoke Alarm and Carbon Monoxide Detector (code 714), in Home Maintenance and Structures: Home Security

By month

1 report from September 2023 to August 2024; the most in August 2024, 1.
The numbers, as a table
Reports to CPSC by the month each was made, newest first
MonthReports
August 20241

How badly anyone was hurt

  • No one hurt 1 CPSC: 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.

Source:

CPSC, SaferProducts.gov public database export. Released Oct 25, 2026. Updated daily.

  1. No one hurt

    Made Aug 8, 2024, sent to the company Aug 16, 2024, published by CPSC Aug 30, 2024

    The product, in the report: [REDACTED]

    Conducting annual fire and life safety inspections for multi-family apartment buildings and discovered missing smoke/carbon monoxide alarms as required by codes. The property management ordered and installed new smoke/carbon monoxide alarms that they ordered from walmart.com. Upon reinspection, it was discovered that the new alarms, when tested, did not perform or sound according to the required standards for smoke alarms in the US. Further inspection revealed that the alarms did not bear the required UL-listing for compliance with US standards. This presents a very serious concern for fire and life safety, if these products are being sold in the US as they are not certified to meet the performance and testing standards.

    Model
    None provided
    UPC
    None
    Serial number
    None
    Where
    Tyler, Texas: Home/Apartment/Condominium
    Who was involved
    Unspecified
    The reporter’s relation to them
    Unspecified
    As this report names them
    Brand Tiergrade, made or sold by SHENZHEN MIER ELECTRONIC TECHNOLOGY CO., LTD.
    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.

Source:

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.

Source:

Reports of harm are from the U.S. Consumer Product Safety Commission (CPSC), on SaferProducts.gov. CPSC does not endorse Hearth Record.

Back to Smoke and carbon monoxide alarms

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.

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