SOR measurement device


Each year, SOR is audited for compliance to ISO 9001

SOR has accomplished ISO certification and maintained our compliance over the past three decades. ISO certification ensures that we’re doing things right for our customers while creating the highest quality products and service.

As part of our commitment to quality, service, and delivery, SOR Inc. holds the following:


Nuclear Certifications and Audits

Certifying Agencies


ATEX (certified by Baseefa, DEMKO, or KEMA), CE, CSA, FM, GOST, IECEx (certified by Baseefa or Standards Australia), INMETRO, PESO (CCOE – India), TIIS, KOSHA, Rostechnadzor (RTN), SIL, TestSafe (SAA – Australia), SASO and UL

Available Listings

Ordinary Locations and Hazardous Locations
SIL Level Switch Certificate
SIL Pressure Switch Certificate


Available Hazardous Locations Protection Methods

Explosion Proof/Flameproof (d)
Intrinsic Safety (ia)
Encapsulation (m)
Special Protection (s)
Combustible Dust (tD)
Energy Limited (nL)

Division 1, Division 2
Class I, Class II, Class III
Groups A-G