The TraceColdTag application enables to access the temperature measurements from the Hub One TLDL NFC dataloggers from any Android smartphone equipped with the NFC technology. It also allows easy set-up of temperature limits. Main characteristics of the NFC dataloggers: - precision of ± 0.2°C between 0 and 30°C, with calibration certificate provided, - temperature limits can be programmed between -40°C and +60°C, - diodes enabling to immediately see if the cold chain has been breached, - reusa