The ISE Basics of Exploration Tec Upgrade is for already BoE trained students which may get a tec certification. This upgrade covers the use of a Bottomstage and Hyperoxic Trimix - 25/25 for the use in no decompression dives down to 40 meters.
The Tec Upgrade is prerequisite for participating at any Level 1 class.
PLEASE BE AWARE THAT THE CLASS CAN BE CONDUCTED IN:
opencircuit backmount / sidemount or any rebreather that you are certified on.