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

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.

A new survey finds 38% of drivers have ignored a check-engine light in the past year, making it the most common risky ...

From Garmin to Apple, Coros to Polar, these are the best GPS watches for runners ...

There are a lot of aviation apps out there that allow you to access useful aviation and weather data from your wrist. Here we ...

The Oura Ring does not directly measure blood pressure. This feature is not currently available on the device. Oura focuses on sleep quality, heart rate variability (HRV), resting heart rate, and body ...

Aqara has announced the Spatial Multi-Sensor FP400, a new presence sensor that it says is precise enough to suss out whether you’re sitting, standing, or lying down. The FP400 builds on several past ...

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 ...

It might be time to start listening to your heart. In recent years, millions of Americans have incorporated wearable health ...

Chinese lidar-maker Hesai announced plans on Monday to double its production capacity from 2 million units to 4 million units this year, as it looks to corner the global market for the laser-based ...

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

A federal judge in California ruled Monday that the Department of Health and Human Services (HHS) can share Medicaid data with immigration enforcement authorities, but he kept in place limits on what ...