Presafe 18ATEX 13742X SENTRY GB-300 Wireless Temperature Monitoring System Issued by DNV GL Presafe AS Certificate type ATEX Certificate zone 2 Certificate no Presafe 18ATEX 13742X Expiration date 31.12.2040 Document file Presafe 18 ATEX 13742X Issue No.1, Signed.pdf Related file(s) Presafe 18 ATEX 13742X, Signed.pdf