Apollo America is recalling about 50,000 combination smoke and carbon monoxide detectors that can malfunction and fail to alert consumers to fires or carbon monoxide leaks, the Consumer Product Safety Commission announced.

The recalled Apollo America model 51000-600 detectors pose risks of smoke inhalation, carbon monoxide poisoning or death when they fail to sound alarms during emergencies, according to the CPSC.

The white detectors were sold exclusively by Vivint online and through door-to-door and telephone sales from June through October 2024 for between $50 to $100. The recalled units display “Replace by” followed by dates ranging from June 2034 to October 2034 on the front, with “Apollo” and the model number on the back.

No injuries have been reported in connection with the defective detectors.

Vivint is providing free replacement detectors to all known customers. The company advises consumers to continue using the recalled units until replacements arrive, then install the new detectors immediately upon receipt.

After installing replacements, consumers should write “recalled” on the original detector, remove its batteries and dispose of the unit in household garbage. The lithium batteries require special disposal at municipal household hazardous waste collection centers or battery recycling boxes at retail stores, as they can pose fire risks in regular trash.

Consumers can contact Vivint to verify if their detector is included in the recall or check replacement status. Detailed installation instructions are available through the company’s replacement guide.

The CPSC recommends consumers review carbon monoxide poisoning prevention information on the agency’s website.

This recall was announced June 5, 2025.