Cydiance Lorca and Piura temperature data loggers are equipped with high accuracy and stable digital temperature/humidity sensors.
We confirm that all sensors used, are manufacturerd by Sensiron from the Switzerland. Sensiron processes the calibration on each unit which traces back to National Institute of Standards and Technology(NIST) from USA, Physikalisch-Technische Bundesanstalt (PTB) from Germany and National Physical Laboratory (NPL) from UK.
Each device is individually tested after its calibration.
You may find a calibration statement from Sensiron as attached from below link, which applies to all sensors supplied to Cydiance.