Laser Digital Thermometer | FerrariChat
Buy

Laser Digital Thermometer

Discussion in 'Australia' started by Aircon, Jan 8, 2011.

This site may earn a commission from merchant affiliate links, including eBay, Amazon, Skimlinks, and others.

  1. Aircon

    Aircon Ten Time F1 World Champ
    BANNED

    Jun 23, 2003
    100,524
    Melbourne, Australia
    Full Name:
    Peter
    #1 Aircon, Jan 8, 2011
    I just bought one of these things and noticed something strange. I aimed it at the cup warmer on my coffee machine and it reads 25deg..which is clearly wrong because it's quite hot to the touch. All the plastic around it is 50+ degrees, which makes more sense.

    This lead me to wonder how accurate it would be at measuring brake disc temperatures if the metal on my coffee machine gave such an erroneous read out.

    Anyone know for sure?
     
  2. Arvin Grajau

    Arvin Grajau Seven Time F1 World Champ

    Jun 7, 2006
    78,325
    Wurundjeri man.
    Full Name:
    Arvin Grajau
    #2 Arvin Grajau, Jan 8, 2011
    I used one when racing on tyres and brakes,most welcome to try it.
     
  3. Aircon

    Aircon Ten Time F1 World Champ
    BANNED

    Jun 23, 2003
    100,524
    Melbourne, Australia
    Full Name:
    Peter
    #3 Aircon, Jan 8, 2011
    Thanks for the response and not answering the question :p
     
  4. Arvin Grajau

    Arvin Grajau Seven Time F1 World Champ

    Jun 7, 2006
    78,325
    Wurundjeri man.
    Full Name:
    Arvin Grajau
    #4 Arvin Grajau, Jan 8, 2011
    so you don't want to compare readings?
     
  5. Cribbj

    Cribbj Formula 3
    BANNED

    Jan 1, 2011
    2,316
    Cooke City MT, The Coolest Small Town in America
    Full Name:
    John
    #5 Cribbj, Jan 8, 2011
    They don't work all that well on smooth or shiny metal; it confuses the laser.

    Dark or rough surface readings should be fairly accurate.
     
  6. b27

    b27 F1 World Champ

    Oct 11, 2007
    15,781
    Melbourne, Australia
    Full Name:
    Brett
    #6 b27, Jan 8, 2011
    Its called emissivity PP. Google it. If you search that word here on Fchat you might find a post I did showing a tool. I painted part of the surface with matt black paint. The tool was as 57 degrees. When aiming at the painted bit it read 57 and yet when I aimed it at the non painted aluminum surface it read 36 degrees.
     
  7. b27

    b27 F1 World Champ

    Oct 11, 2007
    15,781
    Melbourne, Australia
    Full Name:
    Brett
    #7 b27, Jan 8, 2011
  8. maurice70

    maurice70 F1 Rookie

    Jan 25, 2004
    4,334
    Sydney
    Full Name:
    maurice T
    #8 maurice70, Jan 8, 2011
    My experience with them when using them in HVAC applications is that they aren't very accurate.Basically will only tell me if something is hot or cold
     
  9. greg246

    greg246 Two Time F1 World Champ
    Owner Silver Subscribed

    Jun 2, 2004
    26,626
    #9 greg246, Jan 8, 2011
  10. Aircon

    Aircon Ten Time F1 World Champ
    BANNED

    Jun 23, 2003
    100,524
    Melbourne, Australia
    Full Name:
    Peter
    #10 Aircon, Jan 8, 2011
    costs money and he's a tight arse.
     
  11. Aircon

    Aircon Ten Time F1 World Champ
    BANNED

    Jun 23, 2003
    100,524
    Melbourne, Australia
    Full Name:
    Peter
    #11 Aircon, Jan 8, 2011
    thank you. i'd have felt ripped off with this thing if it hadn't only cost $8.11

    it seemed spot on when measuring inside the fridge, the oven and other flat coloured objects.

    bloody useless for brakes though I'd say.

    Also measured air from my a/c vent reasonably well too but i assume that's only because the cold air cooled the metal air outlet.
     
  12. XTREMEIND

    XTREMEIND Formula 3

    Mar 8, 2010
    1,270
    Melbourne, Australia
    Full Name:
    Showbag
    #12 XTREMEIND, Jan 8, 2011
    I use one with my model aircraft engines which have cast painted cylinder heads and it appears to be quite accurate, the readings I get are very simular to what the German manufacturer gets on a purpose built test dyno.
     
  13. mhh

    mhh F1 Veteran

    Feb 16, 2004
    5,894
    Australia
    Full Name:
    Mark
    #13 mhh, Jan 8, 2011
    Hey, a gadget I haven't got. :p

    What are they for and where do you get them?
     
  14. Aircon

    Aircon Ten Time F1 World Champ
    BANNED

    Jun 23, 2003
    100,524
    Melbourne, Australia
    Full Name:
    Peter
    #14 Aircon, Jan 8, 2011
    lol

    you're a funny boy :)
     
  15. Buxton

    Buxton Formula Junior

    Oct 31, 2010
    484
    Full Name:
    B Buxton
    #15 Buxton, Jan 8, 2011
    You might be using it for the wrong application.
    Are these intended to measure external temperatures or where the sun doesn't shine?
     
  16. 275 GTB

    275 GTB Formula 3

    Nov 21, 2008
    1,337
    Sthrn Highlands
    #16 275 GTB, Jan 8, 2011
    Hmmmm maybe he needs a rectal thermometer then.....
     
  17. SPEEDCORE

    SPEEDCORE Four Time F1 World Champ

    Jul 11, 2005
    46,182
    Full Name:
    Toe Knee
    #17 SPEEDCORE, Jan 9, 2011
    Did your laser digital thermometer cost $5 from China ?

    Might explain why it's crap :p
     
  18. Aircon

    Aircon Ten Time F1 World Champ
    BANNED

    Jun 23, 2003
    100,524
    Melbourne, Australia
    Full Name:
    Peter
    #18 Aircon, Jan 9, 2011
    it's not....it seems to do exactly what they usually do, which is......not what a lot of us would want to do with it.
     
  19. EfiOz

    EfiOz Formula Junior

    Jul 26, 2005
    850
    Lago di Legana
    Full Name:
    Lucivius Maximus
    #19 EfiOz, Jan 9, 2011
    We sell seperate IR's for brake or tyre, but not both. The two main differences are temp range and emmisivity settings. The brake one is cal'd for bright steel.
     
  20. Aircon

    Aircon Ten Time F1 World Champ
    BANNED

    Jun 23, 2003
    100,524
    Melbourne, Australia
    Full Name:
    Peter
    #20 Aircon, Jan 10, 2011
    i reckon that's where mine is let down, not that i bought it for that.
     

Share This Page