Page 1 of 2 12 LastLast
Results 1 to 10 of 11

Thread: Digital thermometer?

  1. #1

    Join Date
    Nov 2009
    Location
    Sydney, Australia
    Posts
    633

    Digital thermometer?

    Any recommendations/links? Nothing too silly, just within spitting distance is good for me!

  2. #2

    Join Date
    Nov 1999
    Location
    Adelaide, South Australia
    Posts
    705

    Re: Digital thermometer?

    Dick Smith's usually have a good accurate and inexpensive probe digital thermometer.

  3. #3

    Join Date
    Nov 2009
    Location
    Sydney, Australia
    Posts
    633

    Re: Digital thermometer?

    Cheers Steve - I found one at DSE which was nice and cheap. Going to test it against a few other thermometers for accuracy. Might need a chat with you re BTZS sometime this weekend if you're about!

  4. #4
    hacker extraordinaire
    Join Date
    May 2009
    Location
    TX
    Posts
    961

    Re: Digital thermometer?

    I have several of these. I am very happy with them. They are all within 1/2 degree of my Kodak process thermometer, waterproof, respond fast, and are cheap enough, and can cover the range from freezing to beer-mashing temps.

    http://www.amazon.com/Taylor-9842-Co...9135145&sr=1-1
    Science is what we understand well enough to explain to a computer. Art is everything else we do.
    --A=B by Petkovšek et. al.

  5. #5
    ki6mf's Avatar
    Join Date
    Nov 2007
    Location
    Austin, TX
    Posts
    590

    Re: Digital thermometer?

    I found a waterproof thermometer in a gormat food store. Make sure its waterproof. Cost was $14.00 US Dollars. In chekcing it against a color thermometer it was spot on and now is wat I use all the time!
    Wally Brooks

    Everything is Analog!
    Any Fool Can Shoot Digital!
    Any Coward can shoot a zoom! Use primes and get closer.

  6. #6
    Peter J. De Smidt's Avatar
    Join Date
    Sep 2006
    Location
    Fond du Lac, WI, USA
    Posts
    2,795

    Re: Digital thermometer?

    I've used a bunch of them. My favorite is: http://www.thermoworks.com/products/...st/rt600c.html
    "There are no rules here - we're trying to accomplish something." - Thomas A. Edison
    www.peterdesmidt.com/blog

  7. #7
    Drew Wiley
    Join Date
    Sep 2008
    Location
    SF Bay area, CA
    Posts
    5,558

    Re: Digital thermometer?

    I've had a few expensive ones over the years. The basic Kodak process thermometer works
    a lot faster and better.

  8. #8

    Join Date
    Oct 2005
    Location
    Petaluma, CA
    Posts
    1,567

    Re: Digital thermometer?

    I did a bunch of research on this... Most thermometers are repeatable. Very few are actually accurate. Often, they have NIST certifications. It's meaningless. I would also doubt the accuracy of any glass thermometer. (Kodak, shmodak.) Just understand that what you need is "repeatability". It doesn't really much matter what the temperature actually is - unless you are trying to help someone else, which is almost impossible since agitation differs so much, etc.

    Some are accurate "at points". This means at 0C and 100C, usually. Doesn't help you at the temperature we like to develop at, around 20C or so. They don't even measure it.

    The ones that are accurate cost around $500.

    Given this, might be good to get something that won't break easily... so you can keep using it for a long time.

    Lenny
    EigerStudios
    Museum Quality Drum Scanning and Printing

  9. #9
    Drew Wiley
    Join Date
    Sep 2008
    Location
    SF Bay area, CA
    Posts
    5,558

    Re: Digital thermometer?

    We used to have a scientific supplier just a couple blocks away who sold nothing but thermometers, an actual warehouse of all kinds of them, but mostly glass. And in this R&D town, the world epicenter of biotech and pharmaceutical research, plus UCB, you can be pretty certain those thermometers were damn accurate! But one gets what one pays for!

  10. #10
    Moderator
    Join Date
    Dec 1999
    Posts
    2,494

    Re: Digital thermometer?

    Quote Originally Posted by welly View Post
    Cheers Steve - I found one at DSE which was nice and cheap. Going to test it against a few other thermometers for accuracy. Might need a chat with you re BTZS sometime this weekend if you're about!
    I have a couple of digital thermometers; I forget what brand. I've compared both with a Kodak process thermometer that I got years ago. They're pretty much linear, but closely matches the Kodak at about a single point or within a small range. So, I calibrate the digital thermometer to the Kodak at 70 deg.F, which is the temperature about which I really care. Within a few degrees of 70deg.F, it will still be very close.

    So, which is off, the Kodak or the digital thermometer, I'm not sure? But the nice thing about the Kodak is that it's a constant I can use as a standard. I don't care about whether it's perfectly accurate, as long as it's repeatable. (Which it is.) When I do calibrations, everything adjusts around that standard.

Similar Threads

  1. Eek! I broke my thermometer!
    By John Kasaian in forum Darkroom: Equipment
    Replies: 26
    Last Post: 5-Aug-2011, 12:38
  2. thermometer calibration?
    By Mike Anderson in forum Darkroom: Film, Processing & Printing
    Replies: 34
    Last Post: 15-Jun-2011, 11:45
  3. Digital Thermometer Recommendation
    By Ken Lee in forum Darkroom: Equipment
    Replies: 24
    Last Post: 21-Oct-2009, 06:58
  4. Is your thermometer really accurate?
    By Demetrius Latchis in forum Darkroom: Equipment
    Replies: 16
    Last Post: 25-Feb-2007, 15:51
  5. fixing thermometer
    By poco in forum Darkroom: Equipment
    Replies: 11
    Last Post: 30-Aug-2006, 19:57

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •