The Meter Pro from SwitchBot is so easy to use, and will keep me updated on firework smoke, air hazards and more.

A complete guide to our favourite tried-and-tested handheld PCs, featuring the best of both SteamOS and Windows devices.

Kathryn Gillett, 44, from Wichita, said she bought a battery-powered carbon monoxide detector two years ago for a stay at an ...