CPSC warns nearly 377,000 KH158 gas/CO detectors may fail to alarm

What the CPSC says

CPSC issued the product safety warning on August 20, 2026. The agency says Model KH158 combination natural-gas and carbon-monoxide detectors can fail to alert consumers to the presence of hazardous carbon monoxide.

CPSC states that the manufacturer, Shenzhen Kanghua Shengshi Industrial Co., LTD doing business as KH Alert, has not agreed to recall the detectors. Because of that, this should be described as a product safety warning, not a recall.

Affected products

The warning applies to Model KH158 4-in-1 plug-in natural gas and carbon monoxide detectors. CPSC identifies the products as being sold under multiple brand names, including:

• ARIKON, ELECOIN, FLUNGSKY, HAOKESITE and Hembisen
• JNHCD, KAKIMENT, KH Alert, KOABBIT and NICGOL
• NORJAN, OUMEBIU, Sooguard, Vilfet and Vzmcov
• WESHLGD, XLA Alert and YOJOCK

CPSC describes the units as white, gray, or black plug-in detectors with a digital display, a front “SELF-TEST” button, and POWER, FAULT, and ALARM indicator lights.

Recommended action

CPSC urges consumers to stop using and dispose of the affected products immediately, not purchase or sell them, and install new working carbon monoxide detectors.

Why this matters in the field

These are consumer combination gas/CO products rather than commercial addressable fire alarm devices, but the warning is still relevant to technicians, inspectors, property managers, and service departments. Standalone alarms are common in residential, mixed-use, lodging, office, and accessory spaces, and customers may ask whether a device they purchased online is safe to keep in service.

The practical issue is not just product age or appearance: CPSC reports 91 incidents in which the detectors failed to alarm in the presence of gas and/or carbon monoxide leaks.

Official source