Skip to main content

heinrichs weikamp becomes hw diving.

hw DIVING - since 2004.

OSTC+ OSTC 5 hw Backup hw40 Bottomtimer OSTC 2

Our Products

By divers. For divers.

All products

High-End – the OSTC 5

The OSTC 5 with AMOLED Display

Without Cables – Hw40

The hw40 – a modern primary light without a battery tank!

OSTC 2 – in its 5th Generation

Our classic with extremely long battery life

Unmistakable – the Hw Backup

Compact, bright and reduced to the essentials

Edgy and Black – the Hw Bottomtimer

A very robust bottom timer made of aluminum with a bright display

Many Possibilities – the OSTC+

The OSTC+ meets the needs of recreational divers and tech divers alike

Remote Shutter Release – Remote Slave Unit

For creative wreck and cave photography

The OSTC 5 sets new standards in technical diving.

Brilliant AMOLED display, intuitive operation and exceptional performance:
The OSTC 5 sets new standards in technical diving. With 3-button operation, open source firmware (hwOS4) and optional sensor connection for CCR divers, it offers maximum control.

OSTC 5 in the shop

Made in Freiburg and not a seasonal product

The hw40 was completely redeveloped and refined in close cooperation with our test team.

The hw40 in the shop
All Categories

dive computer

Dive lights

O2 Monitoring

Spare parts

Underwater Photography

Hw Diving: by Divers for Divers

hw DIVING has been developing and producing high-quality dive computers, lights and instruments for technical divers for over 20 years.

Our products combine precision, reliability and openness.

All products

Made in Germany, tested under real conditions.

All products

Based on transparent open source software.

All products

OSTC +

Also usable on CCR

Optional with Fischer or S8 socket for oxygen monitoring - ideal for CCR divers. A powerful all-rounder for ambitious technical applications. Details

Here to stay.

Hw Backup

Ergonomic design, easy to use, built for many years of use.

Minimalist but powerful, the hw Backup offers 380 lumens of light for over two hours at constant brightness. Details

hwOS – Open. Precise. Flexible.

Our operating system for dive computers is completely open and configurable – from apnea to trimix diving. Thanks to a consistent open source philosophy, free updates and an active community, your OSTC always remains up-to-date and reliable.

More about this

Forum

Our forum enables the exchange about our OSTC and news and updates are published here.

To the forum

About us

By divers for divers – since 2004
hw DIVING has been developing and producing high-quality dive computers, lights and instruments for technical divers for over 20 years.

About us