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 ...

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

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 ...

Aqara is introducing a new presence sensor that is a natural addition for HomeKit users who want reliable automations without the need for a camera. The new Aqara FP300 combines mmWave presence ...

Ford’s CEO says 5,000 jobs are open. Mechanics say there is little wonder why.

Car habits like ignoring warning lights and slamming brakes cost thousands in repairs-12 simple changes protect your engine ...

The chief medical officer is interested in an easier path to market for health screening features in wearable devices.

Component failures, rather than major breakdowns, are increasingly triggering customer frustration and bill shock ...

Announced at IFA 2025, the Luna Smart Ring Gen 2 is the second generation that tracks your biomarkers, and helps you ...

The RDO Trio's smart wiping system turns on automatically when dissolved oxygen readings drop below a user-set level. It clears away buildup that can cause incorrect low dissolved oxygen readings.

If you read about Hall effect sensors — the usual way to detect and measure magnetic fields these days — it sounds deceptively simple. There’s a metal plate with current flowing across it in one ...