TFA - Dostmann Mini-K Thermocouple Measuring Device --- Product features : for temperature measuring by all type K - sensors with miniature connector (e.g. 30.3500 and 30.3503), hold-, auto-off-function, waterproof IP65, accuracy ±1°C or ±1%, magnet holder Range: T: -60...+1370°C (-76...+2498°F)