Thermochron iButtons
What is a Thermochron iButton?
The Thermochron family of iButtons are temperature data loggers that can go almost anywhere. They record time, temperature, and optional humidity, storing these readings for later analysis. The iButton's embedded computer chip integrates a 1-Wire transmitter/receiver, a globally unique address, a thermometer, a clock/calendar, a thermal history log, an alarm event log, and additional memory to store user data, such as location data or a shipping manifest. Thermochron iButtons are recyclable, and under normal conditions, will log data for up to 10 years or 1 million temperature measurements.