308 Schell Lane, Phoenixville PA, 19460

King Tester

Calibration & Repair

We are the top calibration, direct verification, & repair service providers for King Tester products. Please read our process below to understand the importance of having your products routinely serviced through King Tester.

Verification Is A Must.

King Tester is certified under ISO-17025 as an accredited laboratory from the American Association for Laboratory Accreditation (A2LA) for calibrations conforming to ASTM E-10 and ASTM E-110. Direct Verification and indirect verification is required per ASTM E-10 standards for all portable testers at least every 12 months.

Our calibration process is extremely in-depth and goes beyond what others provide; that is why we guarantee our work for 1 year.

What Does A Calibration Service Include?


Disassembly, replace wear parts as needed, and an oil change


Both direct and indirect certification to ASTM E-10 standards for your King Portable Test Head


A ISO 17025 calibration certificate in accordance with ASTM E-10 for your records

Calibration & Repair Process


Calibration Request Form

Press the button below to complete our easy to complete form. Make sure to list a contact name and phone number and provide relevant serial number(s).


Printed Copy for Non-calibration or Repairs Needed

A printed copy needs to be included with your unit for repair only (Printed form is no longer needed for calibration requests). Press link to printable copy below for non-calibration or repairs.


Ship Your Unit

Once you have completed the online calibration form or Printable form for non-calibration or repairs, mail your products to our shipping department:




Send only your test head unless your base requires repair. If you are shipping from outside the USA, be sure to list the unit is being sent for repair to avoid additional customs charges.

Plans & Programs

Want An Upgrade?

Check out our Brinell Buy-Back Program. Ensure cost-effective access to accurate and reliable test results for years to come with our Brinell Buy Back Program.

When your tester is sent in for calibration, King Tester will evaluate the unit for a discounted upgrade.

Service Plans

Save 25% – 30% off your King Portable Test Head repairs.

Loaner Program

​If you require any loaner equipment while your product is being serviced, please reference what you need in your request.

Click the appropriate box when filling out your service form and a King team member will contact you regarding your loaner device.

Have a question or Need Urgent Assistance?

call: +1 (610) 279-6010

We Take Quality Seriously

We are fully certified and work with only the best partners.

Our Repair Policy

​We provide a cost estimate after evaluating your unit. No work is done on any unit until we receive your approval and a purchase order. If the unit cannot be repaired, or you choose not to repair it and you do not replace it with a new unit, you will be charged a fixed service fee of $125.00* plus any S&H.

King Tester guarantees our repair work for a period of 12 months. King reserves the right to determine required repairs to meet standards at its sole discretion.

@ Copyright 2022, King Tester Corporation