LSENLTY Carbon Monoxide Detectors Carry Unauthorized Marks
Owners of model PTH-24D detectors should remove the units immediately as they lack safety certification.
Updated on Oct. 25, 2026 in Appliances
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Safety organization UL Solutions has issued a public notice regarding LSENLTY-brand carbon monoxide detectors sold on Amazon.com. The model PTH-24D units feature unauthorized UL certification marks and have not been evaluated for safety standards.
Why it matters
Using a carbon monoxide detector that has not been tested to safety standards creates a significant risk that the device may fail to alert your household to dangerous gas levels. Because these units lack legitimate certification, their ability to perform their primary safety function is unverified.
The public notice, reference number 25PN-5456, concerns LSENLTY model PTH-24D carbon monoxide detectors. These units, which specify an input voltage of 100-220V at 50/60Hz, have not been evaluated for safety.
The players
UL Solutions
A global safety science organization based in Northbrook, Ill., that tests products for compliance with safety, security, and sustainability standards.
Protech International Group Co., Ltd.
The manufacturer listed on the product labels for the LSENLTY brand carbon monoxide detectors.
The details
The unauthorized certification marks were applied directly to the product labels of the affected detectors. Because UL Solutions has not tested the model PTH-24D, the device lacks confirmation that it meets established safety requirements for life-safety equipment. Consumers should not rely on these devices for protection against carbon monoxide leaks.
Timeline
UL Solutions issued the public safety notice on October 25, 2026.
The Home Front
This notice highlights the risks associated with third-party marketplace purchases where product certifications may not be verified. It serves as a reminder to prioritize hardware from manufacturers that adhere to the UL Solutions product safety certification process.
Check your home for any carbon monoxide detectors labeled LSENLTY model PTH-24D and remove them from service immediately. Because these units are not safety-certified, you should replace them with a verified device that carries a legitimate certification mark.
The takeaway
Unauthorized safety marks on life-saving equipment pose a serious risk to your family's safety. Check your home detector model numbers today and immediately replace any units identified in UL Solutions notice 25PN-5456.
Further reading
For more information on identifying safe home equipment, visit the Appliances section.
Source note: This article includes information reported by La Opinión Digital.
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