We tested popular wideband O₂ controllers against lab-grade equipment to see how accurate their lambda readings really are under real engine conditions.

Smart plugs can add controls to any outlet, but they aren’t perfect for everything. Here’s our guide to using one and which ...

I’ve waited a decade to get a smart lock. Upon moving into a new apartment, the first thing I did was install the new Level Lock Pro. After a month of testing, it has been very much worth the wait.

Now you can control your smart home devices with gestures in addition to button presses. The Flic Duo delivers twice the benefits of the ingenious Flic Button.

The most recent scammy gadget that came across my workbench was an "advanced electromagnetic antifreeze snow removal device." A relative of a friend of mine bought the device, wondered why it didn't ...

Scam "power saving" devices are rampant online. These devices plug into an outlet and promise to "improve the use of energy," "extend the life of electrical equipment," and even "avoid illegal ...