pros and cons of nitek trio

[Gibby]

Taking both on several dives together the DiveRite Trio/Zeagale N2ition 3 had the same exact decompression profile as the old Nitek 3.

[whodunit68]

Consider the Nitek Duo, it costs less. Why would you need to use more than two gases, unless you were using Trimix? Then, you would need a Trimix computer anyways.

Jim

a dive with 2 decompression gasses such as 50% and 100% o2?

[BillBowden]

I had one that was nothing but problems. I literally gave it away. I went back to a used nitek 3 with zero problems. Nitek duo is great also.

[mdax]

I would prefer that the backlight stayed on for a little longer, and that it activated when doing a gas switch....i hate when it resets before diving.

[double humper]

I,ve always used the Duo. It's conservative as previously mentioned, but the biggest annoyance for me is the ascent alarm. It can drive you nuts in a cave with alot of up and down. D.H.

[diveongas]

a dive with 2 decompression gasses such as 50% and 100% o2?

Precisely!! A Trimix dive. Unless you're talking about a very long and very deep dive on air. (Yeah, baby!)

Jim Charles

[Me]

I have a the Zeagle version of the Trio and I've used it for three gases and was not trimix diving. Back gas, stage, and deco gas.

[Kevin Carlisle]

Consider the Nitek Duo, it costs less. Why would you need to use more than two gases, unless you were using Trimix? Then, you would need a Trimix computer anyways.

Jim

They don't make the Duo anymore.

[mtherr]

I use the Trio I bought from Rich at C.E. East. Overall, I'm very satisfied with the computer. If I designed a dream 3 mix nitrox device, I would:
- simplify the displays... it shows more information than we really need (I used a Orca Skinny Dipper for many years that was very simple!!
- provide an option to remove all alarms (fast ascent, approaching PO2 limit, etc.)
- make sure that the computer does not reset in a way that is detrimental to the diver (resets to 100%O2 for O2 limit and air for N2 absorption... At least, I would ask for user confirmation prior to resetting; and if reset is required, I would simply default to air).
- provide a setup feature for the backlight time... yes it drains batteries, but backlighting is useful.. I would spend a bit more on batteries.

I did not do big dives yet with the computer... the most I've done is 1h31 minutes (from cave warning sign back to the same place) after a series of dives at Ginnie. I got out of the water at 2h06 including the 3 minutes safety stop. Some say it is conservative; but I am conservative too... what I know, is that I do much less deco time than when I used a PC software to calculate deco table, which was also much less than when I used air tables while breathing Nitrox (as a conservatism factor).

[MichaelAngelo]

I have owned a trio for over a year now. At first I had trouble making the computor work. I was on tour with work and diving various sites country wide. I thought it was because I was wear gloves in colder water. Last May I was back in NF and had Diverite look at it thru Wayne at Amigo's. They had once again great customer service and took care of the problems. Since then I have had no problems with it. I have used it mostly as a two gas but also as a deep air 50% 100% dives. I also used it when diving 20/30 50% 100% then as a back up to tables. (it cleared with the tables). I also use 3 gases during long cave dives as I believe in deep stops. (32%,50% 100%) I have had a dou for 6 years and loved it. I do wish the trio was just a 3 gas version of the dou. The compass and added features make it makes it too complicate and makes the info too small ( nearing 50 and eyes ain't what they use to be). I also don't like having to reset the gas between dives, ever 24 hours is enough. More on the positive I like the graphing in the log section. I have used the compass underwater and above ground while hiking. Overall I would recommend it ( I own two) if you want a reasonable price non trimix computor.