Hollis TX1 as a backup computer

[Snoweman]

all this talk of redundancy, yet no one seems to buy into my recommendation of buying a doubles regulator set instead of singles so you have a spare first stage on the dive boat for the same reason with talks of "global service".... curious

I don't dive locally. I fly to get to about 99% of all of my dives. Carrying an extra computer is much easier than carrying an extra reg set. Carrying an extra first stage might not be so bad, though. I guess I am thinking of saving the dive. If my reg fails during the dive, I have a backup. But, the dive will be called and maybe the second dive, too. But, a reg failure underwater is a lot more critical than a computer flooding/futzing.

Also, all dive operators have dealt with have rental regulators. Not all have rental computers.

 

[tbone1004]

I don't dive locally. I fly to get to about 99% of all of my dives. Carrying an extra computer is much easier than carrying an extra reg set. Carrying an extra first stage might not be so bad, though. I guess I am thinking of saving the dive. If my reg fails during the dive, I have a backup. But, the dive will be called and maybe the second dive, too. But, a reg failure underwater is a lot more critical than a computer flooding/futzing.

Also, all dive operators have dealt with have rental regulators. Not all have rental computers.

learn tables or ratio deco. Wear a watch. You are doing recreational diving, ride your buddies computer if you have to to finish a dive or a day of diving. A broken computer is not a reason to call a dive IMO. It's an inconvenience. You also have a Perdix AI, the extent of it failing is going to be a dead battery if you are the same type of person that sees how far they can go when the gas light comes on and the trip computer says 0-miles on your car. If you fill up between a quarter and half tank, you never have to worry. I have yet to hear of a dead shearwater from Predator and newer causing someone to call a dive or day other than a couple isolated flooded battery compartments that they resolved with the Perdix. I'm sure it's happened to someone, and I know some of them have gone funky with rebreathers *usually the wires between the head and the computer, but haven't heard of any perdix failures. They are reliable enough that I don't carry a backup on 3+ hour cave dives with me, granted I know the rough deco profile coming out, but even on a big ocean trip I have a knotted spool with 10ft increment knots starting at 70ft, I wear a watch, and use ratio deco and/or tables assuming my buddies computer also died.

 

[scubadada]

Hi @tbone1004

Not everyone dives, or wants to dive, like you do. I dive mostly rec, often solo, dive an AI primary with a backup computer and SPG. I've used the backup computer a couple of times, the SPG a couple times more, in about 1200 dives, enough for me.

Good diving, Craig

 

[Snoweman]

So..., someone on eBay seems to have a supply of TX-1's for sale (new). For $359, plus $12 for shipping, it seems like a good deal to me.

 

[scubadada]

So..., someone on eBay seems to have a supply of TX-1's for sale (new). For $359, plus $12 for shipping, it seems like a good deal to me.

Could be, see my post #10. I like to have my backup match my primary computer. There aren't any inexpensive computers running Buhlmann, maybe Deep 6 will come through with their computer someday, we've been waiting a long time

 

[RyanT]

If I'm correct, the Tx-1 is Hollis's trimix computer. Seems overkill for what you are looking for. I actually use one of Hollis's non-trimix puck computers as a back-up in gauge mode. If you're just looking for a back-up, you can find a cheaper computer to run in gauge mode as a bottom timer.

 

[scubadada]

If I'm correct, the Tx-1 is Hollis's trimix computer. Seems overkill for what you are looking for. I actually use one of Hollis's non-trimix puck computers as a back-up in gauge mode. If you're just looking for a back-up, you can find a cheaper computer to run in gauge mode as a bottom timer.

Unless you want a computer

 

[RyanT]

Unless you want a computer

Or you can run the computer, in...I dunno....computer mode.

 

[Snoweman]

If I'm correct, the Tx-1 is Hollis's trimix computer. Seems overkill for what you are looking for. I actually use one of Hollis's non-trimix puck computers as a back-up in gauge mode. If you're just looking for a back-up, you can find a cheaper computer to run in gauge mode as a bottom timer.

It can handle trimix, but can do air and nitrox. It can also read my transmitter. It can also closely match the NDL of my Perdix.

 

[RyanT]

If you'd like all those features, then sure, it'll be a fine back up computer. I've been diving my Hollis puck for a couple of years in gauge mode and it's been great.