Rosengrens The Rosengrens Sargasso P120 fireproof cupboard is tested and certified by the ECB-S to the European standard EN 1047-1 Class S120P proving 120 minutes fire protection for documents. The Sargasso P120 is secured with a Rosengrens high security key lock RKL-10 with optional lock upgrades available including electronic digital combination lock and dual locking. There is also one other size available in this range.