This is my new favorite thermal imaging camera for Android and iOS - and it's not even close

• It's the perfect thermal camera for professional and consumer use.
• From my testing, the camera has great accuracy and temperature resolution.
• While it works with Android and iOS, it's still fairly pricey at $300.

I make no bones about being a huge fan of thermal cameras for smartphones. Initially, I dismissed them as a gimmick, but within minutes, I was sold on their practicality. I think they are a must-have for both engineers and home DIYers.

I've used mine for all sorts of applications, from finding out how much propane is in a tank (point the camera at the tank and you'll see the level), discovering pipes and electrical cables in walls, spotting draughts around doors and windows, and identifying faulty components on circuit boards.

Also: I take this $30 pocket multitool everywhere, and keep finding new uses for it

They are ...