Dive Computer advice please

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I do not think tec computer was available in 1998 or was very expensive.
Cochran Commander (air and nitrox versions)..... I got one in the early 90's when I started going to recreational limits wreck diving the Great Lakes.

Price couldn't have been too bad then as I was just out of school with my first real job....

One of the first computers advertised to never lock you out.
 
I do not think tec computer was available in 1998 or was very expensive.
My best SAC is 6L per min on single or around 8L on twin with 2 stage bottles.
Did I mention that I used table for rec dive or is it your own assumption based on what? I used the same basic dive computer for rec dive since 1996.
6 liters/min is a phenomenally low gas consumption rate for a whole dive, 0.21 cu ft/min
 
Something that will work and cost so little
 
6 liters/min is a phenomenally low gas consumption rate for a whole dive, 0.21 cu ft/min
In tropical warm water, not against current and physically fit.
I have came across many experienced dive guides in SE Asia with ridiculous SAC.
It is only relative when it comes to SAC and nothing to write home about.
 
Guys time for the silly question so do you leave the transmitter on the first stage at all time or you take it out after your diving is done ? ( just wondering )
 
Guys time for the silly question so do you leave the transmitter on the first stage at all time or you take it out after your diving is done ? ( just wondering )
If I removed a hose from the 1st stage, I will replace the O ring on next installation.
 
SHEARWATER
PeregrineTernTern TXPerdix 2TericPetrel 3
Depth rating​
120m / 394ft120m / 394ft120m / 394ft260m / 850ft200m / 660ft290m / 950ft
Buttons​
2 (316 steel)4 (316 steel)4 (316 steel)2 (Titanium Piezo)4 (316 steel)2 (Titanium Piezo)
Color screen​
YYYYYY
Screen​
LCDAMOLEDAMOLEDLCDAMOLEDAMOLED
Screen size​
55.9mm / 2.20"33.0mm / 1.30" ø33.0mm / 1.30" ø55.9mm / 2.20"35.3mm / 1.39" ø66.0mm / 2.60"
Crystal​
Toughened GlassToughened GlassToughened GlassToughened GlassSapphireToughened Glass
Resolution​
320x240px360px ø360px ø320x240px400px ø320x240px
AI​
--YYYY
Transmitters​
--Up to 4Up to 4Up to 4Up to 4
Vibration alerts​
YYYYYY
Watch style​
-YY-Y-
OC TEC mode​
---YYY
CC/BO mode​
---YYY
Freedive mode​
-YY-Y-
Log hours @ 10s​
20050050010005001000
Battery​
Internal Li-ionInternal Li-ionInternal Li-ion1.5V Lithium AA¹Internal Li-ion1.5V Lithium AA¹
Battery life²​
30 hours20 hours20 hours60 hours30 hours60 hours
Gas mixes​
3 OC3 OC3 OC5 OC/CC5 OC/CC5 OC/CC
Compass​
--YYYY
Price USD³​
$550$650$775$1165$1170$1400
Price CAD⁴​
$700$850$1025$1470$1500$1650
Price EUR⁵​
€499€699€829€1069€1139€1440
Price GBP⁶​
£500£615£740£1060£1085£1200


¹ Will accept any AA battery, but vibration mode is only supported on Lithium and rechargeable Li-ion batteries.
² On medium brightness, AI turned off, and with listed battery type. Rechargeable batteries may lose capacity over time.
³ USD prices taken from Scuba.com
⁴ CAD prices taken from Shearwater.com
⁵ EUR prices taken from Duikwereld.nl
⁶ GBP prices taken from MikesDiveStore.com
 
do you leave the transmitter on the first stage at all time or you take it out after your diving is done ? ( just wondering )
Not understanding why you would even consider removing the transmitter after each dive? Do you remove the SPG and hose or the 2nd stage regulators?

Every time you remove a fitting the O-ring has to reseat and you're increasing the chances of leaks.

And gaining nothing.
 
Guys time for the silly question so do you leave the transmitter on the first stage at all time or you take it out after your diving is done ? ( just wondering )
You leave it on, but you close the cylinder valve and purge the regulator.
The transmitter will automatically turn on when it detects pressure, so leaving your regulator pressurized will drain your transmitter battery.
 

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