If you're into DIY tech, I found a tiny thermal camera that belongs in your toolkit
ZDNET's key takeaways The InfiRay P2 Pro currently sells for around $250, but it's well worth it if you require a thermal vision camera. Use a thermal camera on functioning items to learn how they should look, which will make it easier to spot faults later. The InfiRay P2 Pro thermal camera is the best option, offering flexibility, speed, and accuracy without needing separate charging. View now at Amazon I'm a big fan of Android smartphones with built-in thermal cameras, such as the awesome U