Certificate	Certification/Registration Organization	Product Series
ISO9001	Intertek	STI Quality System
CSA (CAN/US) Intrinsic Safety	CSA	GT2250
CSA (CAN/US) Explosion Proof	CSA	XT25XX T25XX
CSA (CAN/US) Intrinsic Safety	CSA	DT2550 GT2550
CSA (CAN/US) Explosion Proof and Dual Seal	CSA	XT25XX
ATEX Intrinsic Safety	DNV	DT1450 GT2450
ATEX Explosion Proof	DNV	GT23XX
STI RoHS Compliance Letter	N/A	All that apply
Certificate of Design Assessment	America Bureau of Shipping	Wellbore Sensors 219063-20000G 219065-7500BD 219065-20000G 234969-20000G
EC Declaration of Conformity	Report No. RETS0374/A/1 Based on DNV Report No. DNV-2003-OSL-ATEX-0259	DT1450 GT2450
STI Certificate of Compliance to EN 50021:1999 for Zone 2	Reference to UL International Demko A/S No. 0539	GT2414-20000G-101 GT2414-20000G-102 PT2414-300G-101 PT2414-300G-103 PT2414-300G-104 PT2414-300G-105 PT2414-500G-110 PT2414-5000G-111

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