Thank you to the comments of Ubiquity prompted me to buy this thermometer over another. Very good quality, all in stainless steel. It is small but the graduations are nevertheless accurate and rapid rise in temperature. It comes in the form of a needle that slides into a case, the same case being provided with a hook for attaching it. I also bought for measuring the temperature of my tea: it fulfills its function very well. It is not as accurate as an electronic thermometer, but its reliability and its resistance will be higher I think. No battery needed to make it work! Warning: do not consider the use to cook his meat (needle stuck in a roast eg) in an oven: the maximum temperature is 100 °.