PCWorld explains how to create an affordable CO2 air quality monitor using a Raspberry Pi and MH-Z19C sensor for under $40. This DIY project helps monitor indoor air quality since high CO2 levels ...

If you build engines, tune cars, or even just like mashing your foot on the throttle with conviction, you’ve probably heard the term “wideband O2 sensor” being thrown around at the track, dyno ...

There's also a tempting £4,000 prize up for grabs VIRGIN Media and O2 customers could bag an entire year of free broadband or mobile billing. The twinned network giants have unleashed a flurry of ...

Choose a provider and transfer method, research the costs and collect the necessary information. Don't forget to save the receipt. Many, or all, of the products featured on this page are from our ...

PCWorld explains how to identify unauthorized access to your Google account by checking logged-in devices and linked third-party apps. Regular security audits are essential since hackers can exploit ...

You can run a report to check battery health in Windows 11. This report provides details on capacity, cycle counts, and more. If your battery is nearing the end of its life, it can be replaced. Have ...

A home phone could be the only thing keeping you connected to the world when there's a massive mobile outage. Ian Sherr Contributor and Former Editor at Large / News Ian Sherr (he/him/his) grew up in ...