On October 29, 2026, the U.S. Consumer Product Safety Commission issued Product Safety Warning 27-052 on JuzhiAnn, Yfwsrecinoe and JAEHSKA combination smoke and carbon monoxide alarms, model JZA-540COM. The warning covers about 51,825 units sold on Amazon.com and eBay.com between November 2023 and October 2026. CPSC says the alarms “fail to alarm in the presence of hazardous smoke and fire,” and it counts seven reports of that failure. If a shipment of smoke alarms, CO alarms or combination units is leaving China this quarter, two checks belong in the pre-shipment inspection: confirm that the certification claim on the paperwork matches the model in the carton, and pull units from the packed lot to confirm they sound. Those are separate jobs. Neither one is a laboratory certification test.
What CPSC actually published
The warning is short. Read the page yourself before you brief anyone: CPSC Warns Consumers to Stop Using Yfwsrecinoe Smoke and Carbon Monoxide Detectors.
| Item | What the warning says |
|---|---|
| Warning number and date | 27-052, October 29, 2026 |
| Product | JuzhiAnn, Yfwsrecinoe and JAEHSKA combination smoke and carbon monoxide alarms, model JZA-540COM; white plastic, digital display, sold as a single unit or in multipacks |
| Hazard | Fails to alarm in the presence of hazardous smoke and fire, posing a risk of serious injury or death |
| Units | About 51,825 |
| Reports held | Seven reports of the alarms failing to alert in the presence of smoke or fire |
| Where and when sold | Amazon.com and eBay.com, November 2023 through October 2026, for between $11 and $107 |
| Retailer | Shenzhen Laijinhe Trading Co., Ltd., dba Yfwsrecinoe US, of China; unresponsive to CPSC’s request to recall the products |
| Manufactured in | China |
| Consumer action | Stop using the alarms, dispose of them, and install working smoke alarms and CO detectors; do not sell or give away the hazardous products |
Two details matter if you still have this model in stock or a similar lot about to ship. First, this is a product safety warning, and the retailer has not worked with CPSC on a recall, so the page does not offer buyers a remedy program. Second, the $11 to $107 figures are the selling-price range CPSC lists for the units named in this warning, on those two marketplaces, over that sales window. Stock bought in 2023 sits inside the same warning as stock bought last month.
The page also restates CPSC’s standing advice: put smoke alarms and CO detectors on every level of a home and outside separate sleeping areas, keep them battery operated or on battery backup, test them often and replace batteries, and buy only alarms that meet the UL 2034 and UL 217 safety standards. In ordinary industry usage, UL 217 is treated as the smoke-alarm standard and UL 2034 as the CO-alarm standard, and a combination unit is expected to meet both. That pairing is common practice and our reading, not a sentence CPSC wrote on the warning page. Those are the claims your own paperwork should be able to support.
The failure CPSC documented is a unit that stays quiet
Read the hazard line and the incident line together and they describe one thing: a unit that stays silent when there is smoke. Nothing in the published warning turns on a missing sticker, a wrong font on a carton, or a label applied crooked. A unit can carry the right mark, ship with the right manual, sit in a retail carton that photographs well, and still be the unit that does not sound. That is why a check on this category keeps documents and function in two columns, and why the function column is the one that gets dropped when the ship date moves up.
One limit on the evidence needs care, because it gets repeated loosely. The hazard and the seven reports describe response to smoke and fire. That is the failure CPSC has evidence for. The page does not say the CO side of this model was tested and found faulty, and it says nothing about a different model, a different factory or a different brand. What it does establish is that a combination alarm can be built and sold at scale while the part of it that is supposed to wake you does not work.
If this model is already in your stock
Identify the goods by model string and brand, not by the name of the company you bought from. The warning names one model, JZA-540COM, sold under three brands, and a seller who bought through a trading company may not recognise any of them. Check the unit label, inner box and master carton for the model, then check the brand. Compare against the model number rather than your own internal SKU, because the SKU will not appear in a CPSC warning.
Then check the age of the stock. A three-year sales window means the relevant inventory is not only what arrived this season. Look at units on hand, in transit, at a prep centre, in returns, and any older lot pushed to the back. CPSC’s consumer instruction is explicit: stop using the product, dispose of it, and do not sell or give it away. An unsold pallet is still a sale waiting to happen. Passing it to a liquidator or a donation channel is the same act with a different invoice.
If a unit from your own stock has already failed to alert, the warning page points people to SaferProducts.gov. Sellers can use the same route, and it is worth doing before a customer does it for you.
What to check on the next lot
The list below is a release check on packed goods, the kind of work done under a pre-shipment inspection. It assumes the cartons are closed, so the questions are about what is in front of you.
| Check | What a pass looks like | What it does not prove |
|---|---|---|
| Certification claim and file | The model on the certificate or test report matches the model on the carton; the brand and the manufacturing site match too; the report’s scope covers the standard you are claiming and the product version you are shipping | That the units in these cartons are the units that were tested, or that the certificate is still valid. Validity is the certificate holder’s answer, or the issuing body’s |
| Function check on packed units | An agreed number of units drawn from the finished lot are powered up and put through the check your specification names, with each unit’s result recorded and any failure written down rather than swapped out | Behaviour under every smoke condition, or that the design is sound. A sample from a lot is not a type test |
| Model, SKU and packing list | The model string agrees across unit label, inner box, master carton and packing list, including multipack configurations and the ratio inside each pack | That a multipack holds the same build as the single units |
| Labels, manual and warnings | Required marking and warnings present, legible and in the language set your market needs; the manual describes this model and its functions; installation and battery instructions match what is in the box | That the translation is right in every market you sell into |
| Power and battery | Battery type and fit as specified, compartment secure, low-battery indication working, unit behaving as your spec defines after a battery change | Shelf life, or how the unit behaves after a year in a warehouse |
| Packaging and accessories | Retail carton, inserts, mounting hardware, quantity per carton and transit protection as approved | That the product inside works |
None of this is certification, so it is worth saying plainly what an inspection company does. QIS inspects and reports. We do not test to UL 217 or UL 2034, and we cannot issue, maintain or withdraw anyone’s certification or listing. What a visit can do is put the model strings side by side, pull units out of the packed lot, run the function check your specification defines, and write down what happened, unit by unit. If your buyer or your marketplace asks for proof of certification, that answer has to come from the certificate holder or from the organisation that issued it.
How many units get the function check
This number decides whether the check means anything, and sellers often leave it to the inspector on the day. Function checks take time per unit, so sample size and accept number belong in the inspection specification before anyone travels. AQL sampling explains how the general inspection levels work and where the accept and reject numbers come from. For a life-safety function, the general level is a starting point you may want to tighten, and a written record is what stops the accept number being renegotiated at the factory gate once someone sees the first quiet unit.
When a unit does not sound, or the file does not match the model
Either one fails the lot: a packed unit that does not respond to the check, or a certificate for a different model sitting in the same folder. The problem belongs to this shipment rather than the next one. The options at that point, from holding the goods to rework, re-inspection and rejection, are set out in what to do when an inspection fails. The short version is that the decision gets made while the goods are still on the factory floor. Once the cartons are on a boat or in a fulfilment centre, the only moves left are removal and a customer complaint.
When to look again while the line is still running
A final inspection sees the end of the run. If the product is new, the factory is new, or a component changed after the last shipment, a during production inspection shows whether the alarm going into the carton is the same build that produced the units you approved, while there is still time to correct the line instead of the lot. If you are still choosing between suppliers, a factory audit is where you find out whether the company can produce the certificate holder for its own model, which is a different question from whether it can show you a certificate. For sellers shipping to Amazon, the label, packing and carton work sits alongside the product check in our FBA inspection work in China.
If a lot of alarms is leaving China in the next few weeks
Send the model string, the standard you are claiming and the ship date, and we will tell you what a practical check looks like for that lot and how much of it fits in one visit. Book an inspection with those details. If you would rather write first, you can also use the contact page.
Sources
U.S. Consumer Product Safety Commission, “CPSC Warns Consumers to Stop Using Yfwsrecinoe Smoke and Carbon Monoxide Detectors Immediately Due to Risk of Serious Injury or Death from Fire Hazard,” Product Safety Warning 27-052, dated October 29, 2026. CPSC warning 27-052. The UL 2034 and UL 217 standards are named on that page as the standards consumers should look for. The mapping of each standard to each product type, and the statement that a combination unit is expected to meet both, is general industry usage and our reading, not a claim written on the CPSC page. SaferProducts.gov is named on the same warning page for incident reports.