DeNova Detect Brand Combination Natural Gas and Carbon Monoxide Alarms

Published by Reclia Safety Desk | July 19, 2026

Recall Information Record – Reclia Database

Recall Summary
On November 14, 2024, New Cosmos USA Inc., of Lisle, Illinois, initiated a recall of approximately 26,360 DeNova Detect brand combination natural gas and carbon monoxide alarms. The recall was published by the U.S. Consumer Product Safety Commission (CPSC) under Recall Number 25045. The recall involves alarms that can fail to detect and alert consumers to the presence of natural gas or carbon monoxide after an initial alert, posing a risk of carbon monoxide poisoning. No injuries have been reported in connection with this recall.

Affected Products
The recalled product is the DeNova Detect brand combination natural gas and carbon monoxide alarm, 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, with a retail price between $90 and $102. The alarms were manufactured in Japan.

Hazard Information
According to the recall notice, after the recalled alarm alerts consumers to the presence of natural gas or carbon monoxide, the alarm can enter a sleep mode if the alert lasts less than four minutes. During this sleep mode, the alarm may fail to detect and alert consumers to a new incidence of natural gas or carbon monoxide. This failure poses a risk of carbon monoxide poisoning. No injuries have been reported as of the recall publication date.

Consumer Action Required
Consumers who own a recalled DeNova Detect combination natural gas and carbon monoxide alarm (model DD622NCV) should immediately register online at www.denovadetect.com/safetynotice-dd622 to receive a prepaid shipping package and a replacement alarm. Consumers are instructed to continue using the recalled alarms until they install the replacement alarms. Once the replacement alarm is received, consumers should ship the recalled alarm back using the provided prepaid shipping package.

Official Remedy
The official remedy offered by New Cosmos USA Inc. is a free replacement alarm. Consumers will receive a prepaid shipping package to return the recalled alarm after the replacement has been installed. No refund option is specified in the recall notice.

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.

Additional Information
Not specified in the recall notice: The specific number of units sold, the exact date range of manufacturing, or any specific UPC codes. The recall notice does not provide information on whether the alarm failure occurs only under certain environmental conditions or after a specific number of alert cycles. No information is provided regarding any testing or analysis performed by the manufacturer or CPSC beyond the stated hazard. No information is provided about the specific mechanism that causes the alarm to enter sleep mode. No information is provided about the expected timeline for receiving the replacement alarm or the prepaid shipping package. No information is provided about what consumers should do if they cannot access the online registration page. No information is provided about whether the replacement alarm is the same model or a different model. No information is provided about the availability of the recall registration in languages other than English. No information is provided about whether consumers can return the alarm to a retail store for a replacement. No information is provided about the disposal of the recalled alarm if the consumer does not wish to receive a replacement. No information is provided about the specific serial numbers or date codes affected by the recall. No information is provided about the total number of alarms sold or the number of alarms that may exhibit the described failure. No information is provided about any other models or products affected by this recall. No information is provided about the company’s quality control or manufacturing processes. No information is provided about any previous recalls or safety notices related to this product.

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