From the description: “With full readings in only 2 to 3 seconds, the Super-Fast® Thermapen is the world’s best in speed and accuracy. Advanced technology makes 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. A great tool for achieving that perfect meat temperature for a medium rare steak on your grill.” Thermapen was my go-to thermometer for The 4-Hour Chef, and I continue to use and love this device.