This easy test can help you get a gauge on your VO2 max—without a watch. Every day as I peruse through the mountain of ...

The Momentum Z Monoblock Amplifier builds on the core tech found in its previous amplifiers to take performance "to an ...

Despite their limited use for testing wall chargers and power banks, USB inline testers let you compare power sources. In three videos, we take you through their features, and we also try an inline ...

Just about every TV accessory needs an HDMI cable, but not all of them can output 4K. Here's how to tell if yours is capable.

Using the ATX 9801 is easy -- plug one end into a mains outlet, and it acts like a short extension lead with a digital display. The socket on the front accepts pretty much every power plug worldwide, ...

Windows 11 has a built-in report that provides insight into your laptop's battery status, including whether it's time for a replacement.

Class AB amplifiers have been around for a long time, and even with Class D designs becoming more common, there’s stil ...

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 ...

We may receive a commission on purchases made from links. One tool you'll find stashed in all the best electrician's tool backpacks is a multimeter. Most modern multimeters are of the digital variety, ...

Martin Lewis is urging UK households to check their meter readings "now". Energy bills for typical households are set to rise from October 1, 2025, due to a 2% increase in the Ofgem price cap. The ...

Glow plugs are essential in diesel engines because they help heat the combustion chamber, making it easier to start the engine in cold conditions. When glow plugs fail, the engine may struggle to ...

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