Thermal Master officially released the P4 thermal camera, a compact add‑on that plugs into Android phones via USB‑C and runs the Temp Master app. It inherits the P3’s core specs but adds a dual‑lens module that captures visible‑light photos alongside infrared imagery. The device normally retails for $399, but a pre‑Prime Day sale drops the price to $299.

Using code THERMALBF10 trims the cost another 10%, bringing the final price to $269. The P4 measures temperatures from –4 °F to 1112 °F (‑20 °C to 600 °C) with a 512 × 384 IR sensor and fixed focus lens. Twelve color palettes and a visible‑light sensor improve hotspot detection, as demonstrated on a Redmagic 11S Pro where the built‑in fan’s airflow was visualized in real time. The app logs temperature curves for later analysis and comparison.

The box ships with a USB‑C extender and a protective case, so mounting the camera on phones like the Vivo V70 Elite is painless. Image quality outperforms earlier Thermal Master units, and the visible‑light sensor streamlines hotspot troubleshooting for developers. At $269, the P4 delivers portable precision, making it the preferred thermal tool for Android enthusiasts. It also integrates with popular debugging suites, expanding its utility.