Cable penetrators can be a depth sensor（ms5837） or a switch, all penetrators are all the same size, so we can easily place different output or sensor.

underwater switch：

subsea connector：

the connector we use can work under 1000m depth.We have various kind of connectors for different equipments,made in china and ready for sale.

This connector connect battery or onboard power and buoyancy cable for communicate.

Vacuum plug for test watertight enclosure for proper seal：

for example：