Campbell Scientific has recently partnered with a laboratory accredited by the National Voluntary Laboratory Accreditation Program (NVLAP) to better serve those who require calibration services offered by a laboratory accredited under the ISO 17025 standard. This service is currently available for the CR1000, CR800, CR850, and CR23X dataloggers. Other dataloggers will be added soon. This process is in addition to our own calibration services and requires an additional lead time of at least 3 weeks. Each calibrated datalogger is returned with a certificate from the accredited lab.