Calibrations
OHD offers on-going service, support, and calibration on all equipment sold. Our service center conducts NIST-traceable calibrations on respirator fit testing devices and noise and vibration monitoring equipment. Our industry-leading calibration department provides fast-turnaround and exceptional service.
Respirator Fit Testing Calibration
NEW in 2026: We’ve made it easier to purchase calibration for the QuantiFit2™, Legacy Quantifit, and FitTester 3000. If you’re a North American customer, you can start the calibration process by entering your serial number.
If you’re a European customer, visit our European Service page or email [email protected]. If you’re outside of North America and Europe, find your nearest service center.
Tip: Annual calibration of your QuantiFit2™ keeps you in compliance. Learn more about the cost of noncompliance.
SVANTEK Noise Monitoring Calibration
OHD is an authorized service center for SVANTEK equipment in the U.S. Our dedicated service team offers repairs and calibration for:
Download our service return form.
Tip: Annual calibration of your noise equipment ensures accuracy and extends equipment lifespan.
Cirrus Noise Monitoring Calibration
OHD offers on-going service, support, and calibration for Cirrus doseBadges and Sound Level Meters.
Benson Audiometer Calibration
OHD offers in-house or on-site audiometer calibrations for Benson audiometers. OHD also offers sound booth calibration and acoustic analysis.
Download our service return form.
Tip: OHD offers a full line of Benson products, as well as demos and training. Get more info about Benson products.
Returning Your Equipment for Calibration
Because of the delicate nature of some of the equipment that is returned to OHD, we would recommend that you pack your instruments carefully to prevent damage in transit. We would be happy to offer advice as to the best method of shipping and packing. If you have any questions, please contact us and we will be pleased to help.