Thermapen is ETI's classic probe thermometer for chefs, and NANO is the new version. It reads the temperature in 0.4 seconds, so you can check the core temperature before the oven has lost its heat. Accuracy is ±0.3 °C and the range runs from -49.9 to 299 °C, enough for everything from caramel and deep-frying to grilling and sous vide.
The display is backlit and rotates to follow how you hold the thermometer, so it reads easily in either hand and in poor light. It is waterproof to IP67, has a built-in magnet so it can live on the fridge or the extractor hood, and goes to sleep when you put it down. Thermapen NANO is designed and made by ETI in Worthing, England, and comes with a five-year guarantee.