The solely on-line market that disclosed gross sales figures was eBay, which stated that it had offered at the very least 1,311 of the alarms.
One of the fashions, a battery-operated carbon monoxide alarm, was first flagged to eBay by Which? seven years in the past.
This 12 months’s assessments discovered the mannequin failed to answer carbon monoxide 10 instances out of 28 assessments, and was too quiet when it did sound.
Five of the most cost effective 10 carbon monoxide alarms on eBay had been for this mannequin.
Which? discovered 88 sellers itemizing the identical alarm on AliExpress, Amazon, eBay and Wish, with eBay sellers alone accounting for near 600 gross sales.
Another unbranded CO and smoke alarm that didn’t set off 22 instances when CO was within the air was listed by 22 eBay sellers, with 718 gross sales recorded.
Which? additionally discovered two sellers itemizing it on AliExpress.
A separate unbranded alarm which didn’t sound in 15 carbon monoxide detection assessments was out there on the market from six sellers on Amazon and eBay.
In whole, throughout the 5 alarms, Which? discovered 46 listings on AliExpress, 42 on eBay, 41 on Wish and 20 on Amazon.
Which? raised issues that the Government’s replace on its long-delayed product security evaluation final week didn’t affirm that an impartial regulator could be given efficient powers to crack down on unsafe merchandise on on-line marketplaces “any time soon”.
Avril and Gordon Samuel, who arrange the Katie Haines Memorial Trust in 2010 following the demise of their daughter Katie, who died of CO poisoning at her house, stated: “We have previously highlighted concerns about some carbon monoxide alarms being sold online, many coming from China, and campaigned vigorously about the need to purchase CO alarms only from reputable manufacturers and retailers.
Which? said online marketplaces also needed to do “much more to prevent unsafe product listings appearing in the first place, rather than removing these products reactively when a consumer champion like Which? flags them – especially since they appear to be unable to prevent them being relisted for sale”.
Sue Davies, Which? head of shopper safety coverage, stated: “Which? has been raising concerns about dangerous CO alarms for years, yet online marketplaces continue to allow them on their sites and into people’s homes, despite the potentially fatal consequences.
“This is the latest in a long line of examples of unsafe products being readily available on online marketplaces, with far too little action taken by the platforms to prevent them being allowed for sale.
“The Government cannot delay any longer. It must move at pace to establish new regulations that put consumer safety first and enable tough enforcement action against online marketplaces that break the rules.”
An Amazon spokesman stated: “Safety is a top priority at Amazon. We require all products to comply with applicable laws and regulations and have developed industry-leading tools to prevent unsafe or non-compliant products from being listed in our stores.
“We have removed these products pending further investigation.”
An eBay spokesman stated: “We take the safety of our users very seriously and immediately removed the listings reported to us by Which?
“We prohibit unbranded and unsafe brands of smoke or carbon monoxide detectors. We only allow sellers to list approved brands of carbon monoxide detectors and have taken action against the sellers who breached this policy.
“We continuously review and update the measures in place to prevent the sale of unsafe products. We have also conducted further sweeps of our site to remove any similar listings.”
A Department for Business and Trade spokesman stated: “We take public safety extremely seriously which is why we are consulting on modernising our product safety framework to hold online marketplaces to account, ensuring items sold online meet the same standards as on the high street.
“If businesses don’t comply with product safety regulations, the Office for Product Safety and Standards will take appropriate enforcement action such as ordering the removal of the product from the market.”
