We are not an ISO certified calibration facility. We are an OEM who uses NIST traceable calibration equipment to perform calibrations and recalibrations. We have access to an ISO certified laboratory that we can use to perform calibrations if necessary. If you want us to perform the calibration in an ISO approved laboratory, using NIST traceable calibration equipment, please add this option per sensor. 

Please note that this ISO option fee is in addition to the calibration fee. For example, if you would like digital compression calibration DCAL*C01, the fee is $100 per sensor. With the ISO option, the total fee will be $100 + $1000 = $1100.