This thermal camera is my new favorite smartphone accessory (and it’s $50 off)

Regular readers will know that I am a big fan of thermal cameras. They are cool and give you a view of the world you can’t otherwise see, but they are also super useful and have become a key tool in my repair toolbox. I’ve used them for everything from spotting a faulty component on a circuit board to finding a wiring problem underneath floorboards.

A thermal camera is a super useful tool — and these devices are cheaper than you might think.

Also: Want an entire tech repair shop of tools in a single messenger bag? iFixit can fix that

The Thermal Master P2 thermal camera

Getting started with the P2 is easy. Download and install the Temp Master app from the Google Play Store, fire up the app, pop the camera into the USB-C port, and away you go. 

I’ve used many thermal cameras and one P2 feature I like is the 25Hz refresh rate. It makes my thermal cameras with slower refresh rates feel slow and clunky by comparison. I also like how the 15x zoom lets me get close to the action.

Also: I tested the world’s first thermal phone camera with a 50Hz refresh rate, and here are the results

The temperature resolution is sensitive — more than sensitive enough to “see” someone breathing by the temperature changes around their nose.

Not sure what you can do with one of these thermal cameras? Here are just a few things you can do:

• Find 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 to AC units that aren’t cooling
• Find dangerously overheating rechargeable batteries
• Find radiator pipes underneath floorboards
• Find overheating power cables
• Find problems with cooling systems on desktop and laptop systems
• Spot binding brakes on cars

Here is a picture of a USB-C cable getting warm when carrying a heavy current load: