Kaiser digital thermometer

Discussion in 'Darkroom Equipment' started by Tom Kershaw, Oct 5, 2009.

  1. Tom Kershaw

    Tom Kershaw Subscriber

    Messages:
    2,948
    Joined:
    Jun 5, 2004
    Location:
    South Norfol
    Shooter:
    Multi Format
    As I need a thermometer that will go up to colour processing temperatures, does anyone have experience with the Kaiser fototechnik model?

    http://www.kaiser-fototechnik.de/en/produkte/2_1_produktanzeige.asp?nr=4091

    Silverprint's website claims the Kaiser unit is accurate to ±0.3ºC at 38ºC, while a few cheap food units claim accuracy to ±1ºC.

    As a point of comparison Paterson claims its spirit colour thermometer is accurate to ±0.14ºC, but I presume this is resolution or precision rather than accuracy.

    http://www.patersonphotographic.com/patersondarkroom-details2.htm#bottom

    Tom
     
  2. paul_c5x4

    paul_c5x4 Subscriber

    Messages:
    1,933
    Joined:
    Apr 22, 2009
    Location:
    Ye Olde England
    Shooter:
    Large Format
    The Kaiser unit sounds a little expensive just for temperatures. What about this digital thermometer for £20 ?
    Note: I see Maplin also list a clinical thermometer with a range of 32ºC to 43.9ºC with an accuracy of ±0.1°C (34 to 42°C) rest of range ± 0.2°C - Currently out of stock, but only £6.49..

    edit: I see Boots also stock clinical digital thermometers, but don't give any specs on their website.
     
  3. RJS

    RJS Member

    Messages:
    246
    Joined:
    Jan 4, 2005
    Location:
    Southern Cal
    Shooter:
    Multi Format
    thermometers

    Dr. Richard Henry in his book "Controls in Black and White . . ." has a section on thermometers he tested, including some very expensive 'laboratory grade' instruments; he found them appalingly (my adjective) inconsistent, considering their expense and claims. I have a Kodak Process thermometer I purchased some years ago which guarantees a certain accuracy, apparently not to be believed. I paid close to $100 about 25 years ago (a princely sum then) and it has worked fine ever since. I really have no idea how 'accurate' it is in comparison to some standard or other, but I trust its consistency. So since all my processing is measured with this thermometer it is at least consistent. Which is what counts, I think'

    If doing it again I would save some money and buy a thermometer that is consistent. I think for our purposes, consistency is much more important than absoloute accuracy
     
  4. AgX

    AgX Member

    Messages:
    12,376
    Joined:
    Apr 5, 2007
    Location:
    Germany
    Shooter:
    Multi Format
  5. MattKing

    MattKing Subscriber

    Messages:
    17,196
    Joined:
    Apr 24, 2005
    Location:
    Delta, BC, Canada
    Shooter:
    Multi Format
    I too have a Kodak Process thermometer, but I only use it for one thing. I use it to check my $15.00 digital kitchen thermometer. So far, the $15.00 thermometer checks out.

    Matt
     
  6. mpirie

    mpirie Subscriber

    Messages:
    199
    Joined:
    Sep 19, 2005
    Location:
    Highlands of Scotland
    Shooter:
    4x5 Format
    I've been using one for over a year now and although it's a perfectly good thermometer, one annoying aspect (to me) is the need to hold the power button down if you want a faster sample read time. If you don't, the display will change every 10 sec's or so instead of every 2 sec's.

    RS used to make an almost identical unit which I also used and I preferred it until it died.

    If I was to buy another digital thermometer, I'd look for the Ilford LED unit that's darkroom safe and gives instant readings.

    Mike