With full readings in only 2 to 3 seconds, the Thermapen is another innovation from ThermoWorks the best in speed and accuracy. Advanced technology makes the new Thermapen Mk4 even more intuitive than previous models. Hold it in any direction and the display automatically rotates right-side-up so you can read it in any position—in either hand, straight up or down; read temperatures without cocking your head. Features Patented auto-rotating display.