There’s something inherently sci-fi about fastening an accessory to my phone and suddenly getting Predator-vision. In the past couple of years, I’ve tested a bunch of smartphone-connected thermal dongles on the market, including the gear from Thermal Master.
It started with the budget-priced P1, followed by the micro-sized P2 that fits on my keychain, and finally the P3 that introduced thermal vision to my iPhone. With its latest release, the Thermal Master P4 steps up as an all-in-one model with dual lenses to deliver outstanding clarity and heat signature performance.
