Button type temperature recording bodyProduct description:  Thermochron® iButton® is a rugged autonomous system that measures temperature and records results in a protected memory cell. It records temperature at a user defined rate, including direct temperature values and histograms. The device can store temperatures up to 2048 equal intervals (ranging from 1 to 255 minutes). If the temperature is beyond the user's range, the time of occurrence, the temperature, the time o... 【Detailed】