Not sure why you'd need a thermal camera?

I could rattle off dozens of good reasons, but here are a few uses I've been putting mine to just recently:

• Finding overheating electrical components (faulty components usually run hotter).
• Diagnose all sorts of HVAC problems, from windows that leak heat, to radiators that aren't warming up properly, and AC units that aren't cooling.
• Uncovering dangerously overheating rechargeable batteries.
• Finding radiator pipes underneath floorboards.
• Spotting problems with cooling systems on desktop and laptop systems.
  
• Spot binding brakes on cars.

Don't let the tiny size and weight of the P2 Pro fool you. It might measure only 27 × 18 × 9.8 mm and weigh a mere 9 grams, but it can read temperatures in the range of -20 °C to 550 °C with an accuracy of ±2 °C. 

Along with the tiny thermal camera, the kit includes a magnetic snap-on macro lens that allows the camera to be brought super close to the item being examined.

While you can buy Android smartphones with built-in thermal cameras, no such iPhone exists. 

However, for $349 for the InfiRay P2 Pro for iPhone and the InfiRay P2 Pro for Android you can add this really useful superpower to your smartphone.