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Any opinions on this digital thermometer?

Started by kaipee, December 09, 2013, 05:05:27 PM

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kaipee

So I have been having a hunt for digital thermometers and came across this. It's a 'turkey-probe' style but is digital.
I'm hoping it would be long enough to be usable for homebrew

http://www.thermometersdirect.co.uk/home-brewing-thermometers/thermometers-direct/a-digital-waterproof-pocket-thermometer-stainless-steel-construction_ct523bd195pd2015.htm

JD

Personally I'd go with something else. There is a cheaper one on the same site that would be more useful if a little less robust.

http://www.thermometersdirect.co.uk/waterproof-thermometers/comark-thermometers/comark-dt400-waterproof-thermometer_ct509bd194pd1991.htm

The benefits of the DT400 is it is more accurate and it reads in 6 seconds.

Covey

My two cents, i got one of these. Have it 6months no probs. i checked it vs and proper calibrated probe and it +/- 0.5C. Plus it has two probes so you can leave them different parts of the mash.
http://www.ebay.ie/itm/Digital-Thermometer-Meter-HD23LHandheld-Contact-TYPE-K-Digital-Temperature-Meter-/121167351354?pt=LH_DefaultDomain_0&hash=item1c36230e3a
i wam wee todd did i am sofa king wee todd did

brenmurph

@ covey

excellent idea two probes, is there two seperate displays of do u toggle between probe 1 & 2?

Covey

Quote from: brenmurph on December 09, 2013, 09:27:10 PM
@ covey

excellent idea two probes, is there two seperate displays of do u toggle between probe 1 & 2?

both displayed at the same time, reads every 2 seconds. Can set alarms on it max min.Handy for the end of the mash. pull one out of the mash and then stick  one in the HLT for sparge temp.
i wam wee todd did i am sofa king wee todd did

Damofto


kaipee

Quote from: Covey on December 09, 2013, 09:23:01 PM
My two cents, i got one of these. Have it 6months no probs. i checked it vs and proper calibrated probe and it +/- 0.5C. Plus it has two probes so you can leave them different parts of the mash.
http://www.ebay.ie/itm/Digital-Thermometer-Meter-HD23LHandheld-Contact-TYPE-K-Digital-Temperature-Meter-/121167351354?pt=LH_DefaultDomain_0&hash=item1c36230e3a

Awesome, those wee jobs look the ticket! I think I'll have to invest in one :D

Sent from my GT-I9300 using Tapatalk


RichC

Quote from: Covey on December 09, 2013, 09:23:01 PM
My two cents, i got one of these. Have it 6months no probs. i checked it vs and proper calibrated probe and it +/- 0.5C. Plus it has two probes so you can leave them different parts of the mash.
http://www.ebay.ie/itm/Digital-Thermometer-Meter-HD23LHandheld-Contact-TYPE-K-Digital-Temperature-Meter-/121167351354?pt=LH_DefaultDomain_0&hash=item1c36230e3a
Do you need thermowells with those? The TCs look like theyre just exposed conductor? or are they enclosed somehow?

Will_D

Quote from: Covey on December 09, 2013, 09:23:01 PM
My two cents, i got one of these. Have it 6months no probs. i checked it vs and proper calibrated probe and it +/- 0.5C. Plus it has two probes so you can leave them different parts of the mash.
http://www.ebay.ie/itm/Digital-Thermometer-Meter-HD23LHandheld-Contact-TYPE-K-Digital-Temperature-Meter-/121167351354?pt=LH_DefaultDomain_0&hash=item1c36230e3a
Looks great OK

Are the probes really that "unfinished" looking ? Are they water proof?
Remember: The Nationals are just round the corner - time to get brewing

Covey

Are the probes really that "unfinished" looking ? Are they water proof?
[/quote]

Not sure i get ya, they are Ktype thermocuples which measure at the tip. They all look like that AFAIK. Each cable has two wire which are soldered at the tip. The are used for Thermal mapping industry wide. Thought you worked in a Lab?
Covey.
i wam wee todd did i am sofa king wee todd did

kaipee

@Covey are they braided or plastic sheathes on the wires?

I don't fancy braided wires, might be a bit difficult to clean/sterilize

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Ciderhead

I used them pre use of stc1000's and occasionally if I want to be sure of something I drag it out if the box.
They are in HLT which is not an issue, and you boil everything post mash so no concerns there either.
They do stain from wort



Covey

what he said, no issue with them, not braied. Not stained on me yet
i wam wee todd did i am sofa king wee todd did

RichC


Quote from: Covey on December 10, 2013, 01:11:13 PM
Are the probes really that "unfinished" looking ? Are they water proof?

Not sure i get ya, they are Ktype thermocuples which measure at the tip. They all look like that AFAIK. Each cable has two wire which are soldered at the tip. The are used for Thermal mapping industry wide. Thought you worked in a Lab?
Covey.
[/quote]
I doubt you'd ever see anyone in a lab sticking a bare TC in a liquid:)
They are indeed used for temperature measurement in a wide variety of industries but in most cases they would be installed in some sort of thermowell. Where I see them they're installed in a quartz sheath to prevent exposure to process chemicals. Seen as they look bare it's surprising that they're not electrically compromised inserting them in a mash.

HomeBrewWest

December 10, 2013, 07:15:45 PM #14 Last Edit: December 10, 2013, 07:26:55 PM by HomeBrewWest
I've only come across them in stainless steel probes, lent one to a friend that was about 700mm long.

But, you could always tape them to the outside of your fermenter. I've done this and taped some paper over them. Works perfectly.

Ah, mashing! That's a bit trickier. Put them in a silicone rubber tubes that have their ends tied.  This would work:
http://www.homebrewwest.ie/silicon-hose-9-x-13-mm-per-metre-1684-p.asp
although its probably a bit too big; a thinner tube would be better. I've seen them here recently but I just can't find them. And I've spend a few minutes trying.

NHC: improve your search engine! Doesn't come up under "silicon". And it then makes me wait before I can search again.

But I do remember the thread and he has thinner tubing which would be perfect.
"I am a firm believer in the people. If given the truth, they can be depended upon to meet any national crisis. The great point is to bring them the real facts, and beer." Abraham Lincoln. www.homebrewwest.ie