Water temp?

[tridacna]

Sorry, Corrected my post. Blame it on auto-correct.
I guess you have not calibrated your temp sensor....right?

Can you calibrate a Shearwater’s temp sensor?

 

[tursiops]

Can you calibrate a Shearwater’s temp sensor?

No, but you can determine that it reads (for example) 1.2deg C high, and use that to adjust your readings.
You are not calibrating the computer per se, just the data from it.

 

[ROUS]

I guess you have not calibrated your temp sensor....right?

I have not, but it's an interesting idea. I could test it in a pot on the stove, but I'm not sure that I'd trust any thermometer in my house to give me a super accurate reading for comparison.

 

[tursiops]

I have not, but it's an interesting idea. I could test it in a pot on the stove, but I'm not sure that I'd trust any thermometer in my house to give me a super accurate reading for comparison.

I've put several dive computers in a pot and used my ThermaPen and an IR Temp Sensor for comparison. Aside from none of the computers diving the same answer as any of the others (varying as much as 4 deg F from one another), they disagreed with both the ThermaPen and the IR sensor. I believe the ThermaPen the most; I used it on ice water and on boiling water, and it was spot on.

 

[AggieDiver]

My wife and I had Suunto Cobras that would routinely show about a 2 degree difference from each other on the same dive. That was why it was nice when CCMI had the NOAA buoy to compare against.

 

[ROUS]

My Peregrine has read 86 degrees all week on the West Side.

 

[AggieDiver]

My Peregrine has read 86 degrees all week on the West Side.

Thanks! Assuming west side of GC? We are heading for LC this Saturday.

 

[ROUS]

Assuming west side of GC?

I should have clarified that. Yes, all west side dives on GC. Have a great trip.

 

[tursiops]

My Peregrine has read 86 degrees all week on the West Side.

Pretty close to what this site says:

Sea water temperature Grand Cayman today | Cayman Islands

Sea water temperature forecast and historical data for Grand Cayman. Today's sea surface temperature report. Average monthly sea temperature and surf forecast

seatemperature.info

Fri 86.5
Sat 86.7
Sun 86.7
Mon 86.9
Tue 86.7
Wed 86.9

 

[AggieDiver]

This week temps have been as low as 85 a few times out on the wall, but mostly 86 and 87 at times in the shallower areas.