Patents & Certifications

Please choose a product from the list above.


Protected by US Patent 8140395 and by US Patent 8645216.


OIML Certificate of Conformity

OIML Certificate of ConformityThe International Organization of Legal Metrology (OIML) promotes the global harmonization of the legal metrology procedures that facilitate international trade, and works to ensure that certification of measuring devices is internationally compatible. The OIML Basic Certificate System is a voluntary system, introduced to facilitate administrative procedures and lower the costs associated with the international trade of measuring instruments subject to legal requirements. Learn more about the OIML Certificate of Conformity, or view the certificate.

EU Type Examination Certificate (MID)

EU Type Examination CertificateThe Measuring Instruments Directive (MID) is a European Union regulation, which seeks to harmonize legal metrology across member states of the EU. This certificate is required for any device used for trade within the European Union. Learn more about the MID, or view the certificate.

NTEP Certificate of Conformance

NTEP Certificate of ConformanceThe National Conference on Weights and Measures issues an NTEP Certificate of Conformance to devices that, upon evaluation, meet applicable requirements of the NIST Handbook 44. This certificate is required for any device used for trade within the United States. Learn more about NTEP certification, or view the certificate.

CE Marking

CE Marking"CE" is the abbreviation of French phrase "Conformité Européene," which translates literally as "European Conformity." The CE Mark is a manufacturer's declaration that the product complies with the essential requirements of the relevant European health, safety and environmental protection regulations. Learn more about CE Marking.

US and Canada Electrical and Safety (Curtis-Straus Mark)

US and Canada Electrical and Safety (Curtis-Straus Mark)Curtis-Straus qualifies products under UL and CSA safety standards. These standards are recognized in the US by the Occupational Safety and Health Administration (OSHA), and in Canada by the Standards Council of Canada (SCC). Learn more about the Curtis-Straus Mark, or view the certificate.Learn more about the Curtis-Straus Mark, or view the certificate.


IECEE CB SchemeThe IECEE CB Scheme faciliates the international acceptance of tests relating to the safety of electrical and electronic equipment, based on the use of international (IEC) standards. Learn more about the IECEE CB Scheme, or view the certificate.