Craig Challen and team recently dove the Pearse River resurgence in Kahurangi National Park. He reached 194m during a 9 hour dive, and broke the Australasian record. He says:
I used two Liquivision X1s on my recent dive to 194 metres in the Pearse Resurgence, South Island, New Zealand. Throughout the 9 hour runtime they performed flawlessly. The visibility of the display in cave diving conditions is excellent and the information available on the home screen is ideal, with further information easily accessed if necessary via the menu.
Using dry gloves and with the handsets from twin rebreathers, “arm real estate” was at a premium, and for this reason the small size and robustness of the Liquivisions was greatly appreciated.
For some time now the X1 has been my computer of choice and I continue to be impressed with them. I have no hesitation in recommending them for technical diving in general and deep cave diving in particular.