This POSEIDON DEEP, regulator is part of the Extreme Range NORSOK U101 which has a 200m approval. It is US Navy tested and features balanced diaphram, built-in anti freeze protection, and has a working pressure of 300bar.

Specifications:
Trimix: Yes (max 21% oxygen)
Nitrox 50%: No
Oxygen (99,95%): No
Oxygen Approved (EN738-1): No
O-rings: Nitril/EPDM
2nd stage Xstream Deep Mk3 Available
NORSOK approved: Yes
Certified: CE En250 cold water approved