Seac Jack

[thbcthomas]

I am going to need to buy a new computer next year and saw the Seac Jack. Does anyone have any experience with this computer? Looks like what I am looking for, wrist compiter, 4 buttons, and buhlmann. Hoping to get some user feedback or thoights on Seac in general.

 

[rongoodman]

Looking at the manual it seems to be geared as much or more towards free diving. The GFs are a pre-selected set, so you can't choose your own. It's not clear how it will react to a perceived deco violation, whether with a lock-out or just a warning.

 

[scubadada]

Hi @thbcthomas

The Seac Jack was reviewed in Scuba Diving Magazine in 2017. The article and a link to the ScubaLab hyperbaric chamber testing are available online: 11 New Dive Computers Tested By ScubaLab In 2017

The Jack uses Buhlmann ZH-L16B, most computers use ZH-L16C. There are 6 preset GFs, the most liberal being 93/93 (pg 25 of the manual). Appears NDLs are somewhere in the middle of the spectrum of liberal to conservative, more conservative than your ProPlus 2. There is a deco control that turns deco violation lock out on or off. When on, there is a 12 hour lock out (pg 26 of manual). Audible alarms can be disabled.

Best of luck in your computer purchase decision