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

A reliable indicator of the air quality in offices, classrooms, or living rooms is the CO2 content. In fresh air, the concentration of carbon dioxide is around 400 ppm. This stands for “parts per ...

The sensor lineup includes smart plugs, air quality monitors, and motion detectors, and automatically connects to Sidewalk without a hub or Wi-Fi. I’m PCMag’s senior writer covering smart home and ...

The recent closure of a California oil refinery — and plans to shutter another in the near future — have some experts warning of potential fuel shortages and price spikes in Nevada and other Western ...

Nvidia's new G-Sync Pulsar takes gaming motion clarity to a new level. After hands-on testing, we break down how its advanced strobing, VRR support, and rolling ...

ACEBOTT QD023 is an ESP32-based wearable gesture control glove that tracks finger movements with potentiometers instead of more traditional flex sensors.

California’s Quest to Phase Out Fossil Fuels Could Make Nevada Fuel Prices Soar The recent closure of a California oil refinery — and plans to shutter another in the near future — have some experts ...

Professional mountain bike racing is a rather bizarre sport. At the highest level, times between podiums will be less than a ...

Although jet engines are theoretically quite simple devices, in reality they tread a fine line between working as intended ...

LAS VEGAS—Ring’s new lineup of sensors aims to do away with the most tedious aspect of smart home security: setup. On display at CES, the sensors supposedly work out of the box without requiring you ...