Upgrading Computer Peregrine vs Perdix

[Wants2divemore]

I agree that you should mount the transmitter on a short HP hose to prevent someone from using the transmitter as a handle. Here's a good inexpensive hose. I prefer the 6" length. You need to order an air spool for connecting the transmitter to the hose.

High Pressure Hose in SHORT Lengths

These short length high pressure hoses are popular for use with deco, stage and sidemount applications as well as transmitters. However, their very short length has special considerations.

www.divegearexpress.com

 

[Scared Silly]

My spouse finally moved from her Cobra and few years ago. After having several Petrels I initially bought myself the Perdix AI and on a couple fun dives before a trip my spouse tried my Perdix AI. I came back from the fun dives without my Perdix AI. So I bought another.

As for the built in rechargeable via user replaceable battery I am all for user replaceable. I spend enough time recharging the batteries for my strobes, if they crap out I can still dive.

 

[Scared Silly]

As for a short hose, I posted up some pictures in this thread.

 

[Belzelbub]

To clarify, I have no desire, or plans, to ever deco dive. But I do see myself getting into doubles/independents, perhaps side mount, overhead/ice dives and work dives.

The Perdix will add Trimix capability, CCR capability, and the tech mode interface. I’m not 100% certain if side mount is included with the Peregrine. If it is, the Peregrine will be fine for your needs.

I really like/prefer Air integration but am not completely sold on wireless AI. When I first started diving I used a Suunto Vyper Air with transmitter. It was OK but too often I lost signal during a dive especially when operating my metal detector. It seems that any tech computer with AI worth its salt these days will be wireless.

That’s often the case when I hear of problems with AI transmitters. Your experience with the Suunto will likely not be the same with the Swift or MH8A transmitters. I’ve been using MH8A transmitters for over 10 years. In all that time, I think I’ve noticed a lost connection once, and it was momentary. The receiver on my Perdix might be a bit better than the one on my Oceanic, as I’ve never seen even a momentary lost comms during a dive. Logs downloaded seem to show a continuous signal as well.

Also wanted to get your take on their AI and transmitters such as how reliable are the connections? Will a whip hose be necessary or just good insurance? Also, will they connect with any MH8A transmitter or are the transmitters proprietary?

I answered the first and third questions above. For the second, it depends. If you dive with dive ops primarily, mounting the transmitter on a short hose might help to make sure they know it’s not a handle. I dive primarily off of my boat, so not an issue. Also, I suspect this was primarily an issue when transmitters were new to the market. Most dive crews have seen transmitters often, so I wouldn’t think mistaking for a handle is a common occurrence anymore.

 

[Divin'Papaw]

The need for a 6" HP hose is overrated IMO. MANY of us do not have one and have had zero issues with the transmitter mounted directly to the 1st stage. Use one if you wish, but unless your HP port placement requires your transmitter to stick out of the top of your 1st stage, which is highly unlikely, you shouldn't have any issues with anyone grabbing your transmitter. These days the majority of regulators have a transmitter attached. They have become quite common. Other divers and boat crew know what they are and not to grab them. YMMV.

As to which computer? If you NEVER intend to do any tech diving, go with the Peregrine Tx. If you'd like the option to not be limited at all by your computer all the way up through trimix, get the Perdix 2.

As many have said, the Peregrine has not had the battery issues seen in some Terics. It is a completely different battery and a completely different computer. Plus the battery gets changed at every General Maintenance, which is recommended every 3-4 years.

 

[scrane]

i do have a computer that has a rechargeable battery — and I prefer that, less chances of water ingress on a rushed battery change
Not that I saw that happen to someone I know, but I did read about it (rare occasions)

I’ll leave it to others to provide better comments on that

After a brief flirtation with the Teric I'm back with the Perdix.
My little dive light with dual circular o-rings in a dynamic capacity, and needing to open to recharge the 18650 at least once a day while diving has never flooded.
My Perdix with dual circular o-rings, in a static seal, opened once or twice a year is something I find impossible to worry about.
Computers with replaceable button batteries are another story. I always felt uneasy with them during and after a battery change.

 

[rfwoodvt]

Muchly appreciate all the input.

It sounds like that unless I'm planning on using trimix or rebreathers then the Peregrine TX will more than meet my needs now and moving into the future

Also sounds like the rechargeable battery is a proven system that I don't have to worry about

 

[rmorgan]

A data point regarding short hoses for transmitters and adding points of potential failure. I added 6" hoses to our reg sets after reading about them here (purchased from LDS). Gearing up for a dive in the spring (after the hoses had been on for a year or so), someone (I can't remember whether it was me or someone on the dive staff) saw a ~1" bubble on the hose about an inch in from the first stage. I took the hoses off both our kits forthwith. A catastrophic failure of that little hose . . . well, I shudder to think. That said, the Shearwater transmitter is considerably smaller than the former Mares device, and I don't worry about it being used for a handle.

 

[KeelsonGraham]

Muchly appreciate all the input.

It sounds like that unless I'm planning on using trimix or rebreathers then the Peregrine TX will more than meet my needs now and moving into the future

Also sounds like the rechargeable battery is a proven system that I don't have to worry about

I have the Peregrine. The rechargeable battery is superb. Recharging time (on the few occasions that you need to) is minimal. The screen is great, the two-button operation is super intuitive. BUT you absolutely must rinse the device after salt water dives. Otherwise the buttons will stick.