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

A vehicle’s Check Engine light can turn any car ride into a harrowing experience. As soon as the check engine light ...

The NIMA Gluten Sensor is 99% accurate at detecting gluten in your food. All it takes is three minutes. At CES 2026, one of the most promising health tech devices we spotted was Allergen Alert, a mini ...

Mira Ultra 4 debuts at CES 2026 with 4-in-1 hormone testing for fertility, PCOS, and menopause. Get the full technical review ...

Galaxy Watch 4 and Watch 4 Classic users report bad battery life and broken sensors after updating to the latest One UI 8 Watch update. There are reports of the always-on display not functioning as ...

The iconic sleep-tracking smart ring is accurate and comfortable—but smart rings make poor activity trackers.

Cardiac device therapy has significantly evolved since the introduction of the first implantable pacemaker and the subsequent ...

To find the right circuit in the electrical panel, you first plug the socket tester into a socket. Then you go to the panel and slide the probe up and down all the breakers. You then do a complete ...

Abstract: Capacitive liquid level sensors are attractive for applications requiring long-term reliability and resistance to corrosion, such as in environmental experiments or domestic water monitoring ...

Samsung's One UI 8 Watch update rollout for the Galaxy Watch 4 and Watch 4 Classic has reportedly been paused, following user complaints. The latest software update is based on Google's Wear OS 6 ...