DeNova Detect Brand Combination Natural Gas and Carbon Monoxide Alarms

Published by Reclia Safety Desk | July 23, 2026

Recall Information Record – Reclia Database

Recall Summary
On November 14, 2024, New Cosmos USA Inc., of Lisle, Illinois, in cooperation with the U.S. Consumer Product Safety Commission (CPSC), announced a recall of approximately 26,360 DeNova Detect brand combination natural gas and carbon monoxide alarms. The recall was issued because the alarms can fail to detect and alert consumers to the presence of natural gas or carbon monoxide under certain conditions, posing a risk of carbon monoxide poisoning. No injuries have been reported in connection with this recall.

Affected Products
The recall involves DeNova Detect brand combination natural gas and carbon monoxide alarms with model number DD622NCV. The words “DeNova Detect, Natural Gas + Carbon Monoxide” are printed on the front of the alarm. The model number is located on the top side of the alarm. The serial number is on the right side of the alarm. The alarms were sold at Lowe’s stores nationwide and online at Amazon.com, Lowes.com, and Denovadetect.com from December 2023 through July 2024 for between $90 and $102. The alarms were manufactured in Japan.

Hazard Information
According to the recall notice, after the alarm has alerted consumers to the presence of natural gas or carbon monoxide, the recalled alarm can go into sleep mode when the alert lasts less than four minutes. During this sleep mode period, the alarms can fail to detect and alert consumers to a new incidence of natural gas or carbon monoxide. This failure to detect and alert poses a risk of carbon monoxide poisoning. The recall notice states that no injuries have been reported.

Consumer Action Required
Consumers should immediately register online at www.denovadetect.com/safetynotice-dd622 to receive a prepaid shipping package and a replacement alarm. Consumers should continue using the recalled alarms until they install the replacement alarms. Once consumers receive the replacement alarm, they should ship the recalled alarm back in the provided prepaid shipping package. The recall notice does not specify any other interim safety measures or instructions beyond continuing to use the recalled alarms until the replacement is installed.

Official Remedy
The official remedy offered by New Cosmos USA Inc. is a free replacement alarm. Consumers who register online will receive a prepaid shipping package and a replacement alarm. After receiving the replacement, consumers must return the recalled alarm using the provided prepaid shipping package. No refund option is listed in the recall notice. The remedy is limited to replacement only.

Contact Information
Consumers may contact New Cosmos USA Inc. toll-free at 888-447-6016 from 7 a.m. to 7 p.m. ET Monday through Friday. Consumers may also email the company at safety@DeNovaDetect.com. Additional information is available online at www.denovadetect.com by clicking on “Recalls” or directly at www.denovadetect.com/safetynotice-dd622. The recall number is 25045. The recall was published on November 14, 2024. The CPSC recall notice is available at the URL provided in the source data. No other contact methods or addresses are specified in the recall notice.

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