At AMETEK STC, we operate two world-class labs offering rapid and reliable product support and recalibration—no matter where you are located. To return a Crystal, JOFRA, or M&G instrument, please use our convenient RMA form to obtain an RMA number and the correct shipping location. Simply click the button below to be guided to the login page to access your service history. If this is your first time using our system, click Register on the next page to create an account—this ensures your product and serial number are securely saved for faster future recalibrations.

Our Services & Facilities
Temperature Calibration & Repair (JOFRA) - Our global approach means you benefit from top-tier support no matter your location:
San Luis Obispo, California (USA)
Our A2LA-accredited lab now handles servicing of all JOFRA temperature calibrators right here in North America. This expansion eliminates the need to ship equipment overseas and delivers faster turnaround times, while still providing manufacturer-level expertise including firmware updates, functional and safety testing, and full service documentation.
Allerød, Denmark (AMETEK Denmark A/S)
Serving as the global hub for temperature and process measurement and calibration, this facility is ISO 9001 certified and also houses an ISO 17025-accredited laboratory. It designs and manufactures high-end portable calibrators and specialized temperature sensors under the JOFRA and Frode Pedersen brands, and issues fully accredited calibration certificates to international standards
Pressure Calibration & Repair (Crystal) - Our facilities for pressure calibration provide unmatched precision and reliability:
San Luis Obispo, California (USA)
Our long-standing Center of Excellence for pressure measurement, the Crystal Engineering lab handles calibration and repair of Crystal pressure products, including handheld digital pressure gauges, transducers, and calibrators. The facility is ISO 9001 certified and ISO 17025 accredited, providing thorough documentation and fast service.
Allerød, Denmark (AMETEK Denmark A/S)
AMETEK Denmark also plays a key role in global calibration efforts across temperature, pressure, and process measurements.
Why Choose AMETEK STC?
Direct Manufacturer Support - Access spare parts, specialized knowledge, and detailed product insights unavailable elsewhere.
Accredited Quality - A2LA-accredited and ISO-certified labs ensure your instruments are calibrated to global standards.
Fast Turnaround - Local facilities and in-house testing (firmware, functional, safety) speed up service delivery.
Convenient RMA System - Easy online RMA form for fast processing—get your return number and shipping address right away.
Online RMA System
Our easy-to-use online
RMA form will automatically direct customers to the correct calibration lab for their location. The efficient process saves even more time, as customers don’t have to wait for a returned call or email. Instead, they can get an RMA number and shipping instructions within seconds. The link to access the RMA page is located in this paragraph and at the top of this page.