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Smoke, CO and gas detectors that CPSC says do not alarm: the 2026 warnings
Between July 9 and October 29, 2026 the Consumer Product Safety Commission published five product safety warnings on combination smoke and carbon monoxide alarms and plug-in natural gas and carbon monoxide detectors that, in its words, fail to alarm. None of the sellers agreed to a recall, so there is no remedy: CPSC asks owners to stop using the units, dispose of them and install working alarms. The two warnings that print a count cover 428,799 units, sold online for as little as $11 apiece, which is the price at which a building buys them by the case. The same season brought a recall of 4,600 commercial-size pool heaters for carbon monoxide. This page gives the model numbers, the brand names and the figures as CPSC printed them, and where a listed device is required by law.
The six notices
| Date and number | Product as printed; where and when sold | Units, reports and status |
|---|---|---|
| October 29, 2026 Warning 27-052 | JuzhiAnn, Yfwsrecinoe and JAEHSKA combination smoke and carbon monoxide alarms, model JZA-540COM; white plastic, digital display. Amazon.com and eBay.com, November 2023 to October 2026, $11 to $107, singly and in multipacks | About 51,825 units; seven reports of failing to alert in the presence of smoke or fire. Seller "unresponsive to CPSC's request to recall"; no remedy |
| October 29, 2026 Warning 27-057 | GuardianSense and KLTseanife combination smoke and carbon monoxide detectors, model YHW-542COM-R (on the back of the unit). Amazon.com and eBay.com, September 2025 to June 2026, $18 to $168 | Count not printed; two reports of failing to alert. Manufacturer and seller unresponsive; no remedy |
| August 20, 2026 Warning 26-706 | 4 in 1 plug-in natural gas and carbon monoxide detectors, model KH158, white, gray or black with a digital display, sold under the 18 brand names listed below. Amazon.com, eBay.com, AliExpress, microcenter.com and snapklik.com, June 2024 to July 2026, $13 to $140 | 376,974 units; 91 reports of failing to alarm in the presence of gas and/or carbon monoxide. Manufacturer "has not agreed to recall"; no remedy |
| August 20, 2026 Warning 26-708 | TJTFJS 2-in-1 carbon monoxide and smoke detectors, model TJ00907; CPSC notes some were sold with no model number on the package. Amazon.com, Walmart.com, Kmart.com, Sears.com and Desertcart.com | Count and reports not printed. Seller unresponsive; no remedy |
| July 9, 2026 Warning 26-614 | JNHCD combination smoke and carbon monoxide detectors, identified by the 14 Amazon listing numbers below. Amazon.com, eBay.com and Sears.com | Count and reports not printed. Seller unresponsive; no remedy |
| September 17, 2026 Recall 26-777 | Universal-HC series 400,000 BTU dual-fuel pool heaters, model HDFS400, brown with a black top, about 21 by 28 by 31 inches. Pool equipment distributors, builders and service professionals nationwide, March to July 2026, about $5,600 | About 4,600 units; no incidents reported. Repair: stop using, call the manufacturer for a free on-site inspection and repair by a qualified technician |
The five detector notices are product safety warnings, not recalls: each says the seller was unresponsive to, or has not agreed to, CPSC's request for a recall, which is why each one says the units should be disposed of rather than returned. The hazard sentence is the same in each: the alarms "fail to alarm in the presence of hazardous smoke and fire," or, for the plug-in units, "can fail to alert consumers to the presence of hazardous carbon monoxide." No injuries are reported in any of the six.
The identifiers, as printed
| Notice | What to read off the unit or the receipt |
|---|---|
| 26-706, the plug-in gas and CO detector | Model KH158. Brand names printed on the unit or the listing: ARIKON, ELECOIN, FLUNGSKY, HAOKESITE, Hembisen, JNHCD, KAKIMENT, KH Alert, KOABBIT, NICGOL, NORJAN, OUMEBIU, Sooguard, Vilfet, Vzmcov, WESHLGD, XLA Alert, YOJOCK |
| 26-614, the JNHCD combination alarm | Amazon listing numbers (ASINs), which CPSC says appear on the purchase receipt: B0C7MTR7ST, B0C7MTBNYB, B0GHDXW52J, B0C9X2Z9T7, B0FSXHPVJL, B0GH77QSYP, B0C9X1CSLR, B0C5TBDR2T, B07PMLN33G, B07YJPYR6D, B0FSXCDJCL, B0C9X1HX11, B0C9X3D2YR, B0GH779LZ7 |
| 27-052 | Model JZA-540COM; brands JuzhiAnn, Yfwsrecinoe, JAEHSKA |
| 27-057 | Model YHW-542COM-R on the back of the unit; brands GuardianSense, KLTseanife |
| 26-708 | Model TJ00907 on the package, or no model number; brand TJTFJS |
| 26-777, the pool heater | Model HDFS400 on the name plate |
Every unit in the five warnings is a white (or gray or black) plastic housing with a digital display, bought online. The warnings print no listing mark, and two of CPSC's pages add the standard a replacement should meet: a carbon monoxide alarm "meeting UL 2034" and a smoke alarm "meeting UL 217." A natural gas alarm has its own standard, UL 1484, which is the one New York City writes into its rule (below).
Where a listed device is required by law
| Jurisdiction | What the official text requires | Date |
|---|---|---|
| New York City: natural gas alarms (Local Law 157 of 2016, Local Law 102 of 2025, 1 RCNY 908-02) | DOB's release of October 13, 2026: owners of covered residential buildings with gas piping (apartment buildings, one- and two-family homes, hotels, motels, lodging and rooming houses, single room occupancy buildings) "must provide and install code-compliant natural gas alarms in every dwelling unit." The alarm must be "listed and labeled to UL 1484 or UL 2075"; hard-wired, plug-in and battery units all qualify. The city "does not endorse specific manufacturers or models." HPD code enforcement will inspect for the alarms from 2027. The proposed rule amendment adds that the alarm "must be manufactured in accordance with NFPA 715," sits 3 to 10 feet from the gas appliance measured horizontally, and may be installed by the owner, maintenance staff or the occupant when it is a battery or plug-in unit; a hard-wired alarm needs a licensed electrical contractor. | Installed by January 1, 2027. Public hearing and written comments on the amendment: November 16, 2026, 11:00 am. |
| Florida: carbon monoxide alarm (s. 553.885, F.S.) | Every separate building, or addition, constructed on or after July 1, 2008 that has a fossil-fuel-burning heater or appliance, a fireplace or an attached garage "shall have an approved operational carbon monoxide alarm installed within 10 feet of each room used for sleeping purposes," or where the Florida Building Code requires. Hard-wired, battery and combination CO and smoke alarms satisfy it. A "carbon monoxide alarm" is a device that meets the Florida Building Commission's requirements and approval, so a unit with no listing is the first thing a building official asks about. | In force; buildings permitted since July 1, 2008 |
| Everywhere: smoke alarms in sleeping rooms | The fire and building codes adopted by the state or city, applying NFPA 72 for household fire alarm equipment, set where smoke alarms go and that they carry a listing; the authority having jurisdiction applies the edition adopted there. | Edition adopted locally |
NFPA 72 in the Citation Decoder · NYC Fire Code 901.6 · New York City's 2026 numbers and the January 1 gas alarm deadline
What this means for a hotel or a condominium
| The fact | The item it points to |
|---|---|
| 376,974 plug-in gas and CO detectors under 18 brand names, $13 to $140, 91 reports of not alarming | A building that bought gas alarms online for the New York City deadline, or CO alarms by the case for guest rooms, has a purchase record. The receipt, with the brand, the model and the listing number, is checked against the table above; the unit itself is checked for a UL 1484 (gas) or UL 2034 (CO) listing mark. A unit with no listing mark does not meet New York City's rule as written, whatever the brand. |
| Seven and two reports of combination smoke and CO alarms failing to alert, October 29 | Combination alarms sold singly and in multipacks at $11 to $168 are the ones a maintenance shop stocks for unit turnovers. The stockroom shelf, not only the installed base, is where the models above are found; CPSC's instruction is to dispose of them, not to resell or give them away. |
| No seller agreed to a recall; CPSC offers no remedy | Replacement is at the building's cost. The replacement specification is a listed alarm: UL 217 for smoke, UL 2034 for carbon monoxide, UL 1484 or UL 2075 for natural gas, installed where the adopted code puts it. The fire marshal or building official confirms the location and the listing; a licensed electrical contractor installs any hard-wired unit. |
| New York City: January 1, 2027, every dwelling unit in a covered building; HPD inspects from 2027 | DOB's release lists battery models from five manufacturers it says are UL 1484 listed, as an example and not an endorsement; a building that has already bought stock compares what it bought against the listing, and against warning 26-706, before the installation program starts. Comments on the rule amendment close November 16. |
| 4,600 pool heaters sold to distributors, builders and service professionals, March to July 2026 | A 400,000 BTU dual-fuel heater is the size installed at a condominium or hotel pool, and it was sold through the trade, so the pool contractor's invoice, not a consumer receipt, is where the model number is. CPSC's remedy is a free inspection and repair by the manufacturer's qualified technician; the pool equipment room is also where the state's public pool rules and the fire code put the CO and ventilation requirements the pool contractor and the health inspector confirm. |
| Florida: a CO alarm within 10 feet of each sleeping room in buildings constructed since July 1, 2008 with a fossil-fuel appliance, a fireplace or an attached garage | Hotels and condominiums built since 2008 with gas water heating, gas dryers in the laundry under guest floors, or a parking garage under the units are in scope. The alarm must be one the Florida Building Commission approves; the building official confirms which units and which locations meet the Florida Building Code edition under which the building was permitted. |
Whether a given alarm is one of the units CPSC describes is read off the unit, the package or the receipt against CPSC's own notice; whether a replacement meets the code is confirmed by the authority having jurisdiction. This page restates federal product-safety notices and the official text of two requirements; it is not an assessment of any property or any device.
What is not on this page, and why
The companies that sold the units are named in CPSC's notices and are not repeated here; the brand names and model numbers are, because they are what a building team reads off the device. CPSC prints no unit count for three of the five warnings and none is estimated. The manufacturers DOB lists as examples of UL 1484 listed alarms are on DOB's page and are not repeated here, since the city says it endorses none. The text of UL 217, UL 2034, UL 1484, UL 2075 and NFPA 715 is not quoted; those are the publishers' documents. Older CPSC warnings on other online-sold smoke and CO alarms exist and are not collected here; this page covers the 2026 notices read on the date above.
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