For the Control of Monitoring and Measuring Devices in your company, we recommend that you send us your loggers for recalibration once or twice a year, depending on their use.

The metrology laboratory

The lab calibrates data loggers during their manufacturing process. Customers are invited to have their loggers calibrated or adjusted periodically or exceptionally.
TMI-Orion has developped the means and skill to carry out metrology operations for temperature, pressure and relative humidity.

Calibration Certificates

Each operation of calibration or adjustment leads to a calibration certificate that gives the data gathered during the operation.
Certificates issued by TMI-Orion are in compliance with norm NF X-07-012.

Metrology equipement

The set of equipment used in the lab has been selected among the most famous manufacturers.
It fits the severe requirements demanded by TMI-Orion data loggers.
Special tools have been designed in order to calibrate in close conditions of customer use.

The standards

The standards used to carry out the calibration operations are in compliance with the TMI-Orion Quality Management System.
Those standards are linked to the national primary standards through periodic calibration performed by COFRAC or A2LA accredited organizations that are recognized in most countries by international agreements.


TMI-Orion product specifications refer to technical terms, which are important to define.

Definitions as worded in "Fundamental standards - International vocabulary of basic and general terms in metrology" NF X 07-001.


Set of operations that establish, under specified conditions, the relationship between values of quantities indicated by a measuring instrument or measuring system, or values represented by a material measure or a reference material, and the corresponding values realized by standards.


Operation of bringing a measuring instrument into a state of performance suitable for its use.

Uncertainty of a measurement

Parameter associated with the result of a measurement, that characterizes the dispersion of the values that could reasonably be attributed to the measurand