All measuring and data acquisition equipment at Arrowhead is identified and arranged on a regular calibration schedule. Calibrations are performed on devices for in-house use by our technicians using state-of-the-art equipment that has been certified and is traceable to the US National Institute of Standards and Technology (NIST).

Each calibrated item in the company inventory is identified and catalogued as to the frequency and specification to which it must be certified. Additionally, at the discretion of the technician, additional or more frequent re-calibrations may be conducted.