Nieaf Smitt will be closed from May 14 to May 17 due to Ascension Day. We will reopen on Monday, May 18.

Calibration and repair of test and measurement equipment

Since 1998, Nieaf-Smitt has operated a professional calibration laboratory for calibrating measuring equipment for electrical quantities and thermal imaging cameras.

Receive 1 EXTRA year of warranty upon registration!

  • If you register your device and have it calibrated by us within 13 months of purchase, you will receive an additional 1 year of warranty!
  • By signing up for the calibration reminder service, you will receive a notification one month before the calibration date expires, reminding you that your test instrument needs to be calibrated.

Nieaf-Smitt is the go-to address for brand-independent calibration of:

  • Multimeters & Clamp Meters
  • Thermometers & Installation Testers
  • Appliance Testers (NEN 3140) & Thermal Imaging Cameras

Thanks to many years of experience and the knowledge built up over time, we offer you:

  • Competitive pricing & Short turnaround times
  • Free loan equipment during repairs*
  • Free calibration reminder service
  • Calibration while-you-wait service & Free shipping service

*) Free loan equipment applies only to repairs of Nieaf-Smitt brand equipment and is subject to availability.

Quality management

Quality and certifications

Nieaf Smitt’s quality and environmental management systems are certified according to the leading international standards: ISO 9001 and ISO 14001.

ISO 9001:

Download certificate

ISO 14001:

Download certificate

Our top sellers

SafetyPAT 3140 Equipment tester

The SafetyPAT 3140 is a progressive tester with a wide range of test functionalities.

Instaltest XB Pro

The Instaltest XB Pro is an easy-to-use, compact combination installation tester compliant with NEN 1010, NEN 3140, and EN 61557 standards.

IRT-C PRO Insulation resistance tester

The IRT-C PRO Insulation Resistance Tester is a robustly designed meter for measuring the insulation resistance of low-voltage installations and applications according to NEN 1010 and NEN 3140 standards.