Question on Laser / IR Thermometer

Discussion in 'The Polling Place' started by Spammy_H, Sep 1, 2010.

?

Is a Cheap Laser Thermometer Worth It?

  1. Yes - it does the job to measure exhaust temp differences

  2. No - don't be a cheapskate - you get what you pay for

  3. I don't care

Multiple votes are allowed.
Results are only viewable after voting.
  1. Spammy_H

    Spammy_H XDTalk 1K Member

    Joined:
    Dec 6, 2008
    Messages:
    1,261
    Likes Received:
    5
    Trophy Points:
    38
    Location:
    The South
    Ratings:
    +8 / 1
    Does anybody have experience with one of these? Do the cheap ones on eBay work well enough to measure the temperature differences in the tailpipe before and after the catalytic converter, or do I need one that costs some real money to do that?

    My semi-repaired Dodge Intrepid (many thanks to those who helped me identify the crankshaft position sensor as the culprit of non-starting) is throwing a P-code that indicates either a bad O2 sensor, or a bad catalytic converter.

    Since the 2 downstream O2 sensors run about $70, I was thinking about investing in a cheap laser/IR thermometer to try to diagnose if my cat's bad, or if it is the 2 O2 sensors downstream from the cat.

    Here's one for about $23 shipping included (actually, it's mostly shipping):

    Infrared IR Laser Non-Contact Digital Thermometer - eBay (item 280556210448 end time Sep-01-10 12:58:13 PDT)

    If this isn't the route, can you recommend one that is "good enough" for the job w/o breaking the bank?

    Thanks again.

     
  2. obieone

    obieone XDTalk 2K Member

    Joined:
    Mar 15, 2010
    Messages:
    2,369
    Likes Received:
    0
    Trophy Points:
    0
    Location:
    'Bubba' land
    Ratings:
    +0 / 0
    I work in the HVAC trade, and NO, I wouldn't buy that. I see no brand name on the unit, and none listed in the description.
    Some brands to look for: Fluke, Raytek, UEi, Extech, etc.
     
  3. titaniumskull

    titaniumskull XDTalk 1K Member

    Joined:
    Jun 25, 2010
    Messages:
    1,285
    Likes Received:
    0
    Trophy Points:
    36
    Location:
    Miami Florida
    Ratings:
    +0 / 0
    I concur. I work Heavy commercial trucks and trailers as well as Carrier and Thermo King and I will stick with the one I got from Snap On. If its to darn cheap then it will not be consistent and too many variables
     
  4. VDubbinMI

    VDubbinMI XDTalk Member

    Joined:
    Mar 26, 2009
    Messages:
    94
    Likes Received:
    0
    Trophy Points:
    0
    Location:
    St. Hgts, MI
    Ratings:
    +0 / 0
    Seeing as how your only using this to pinpoint a failing catalytic converter and not something your going to make a living using everyday I would say that it should be fine for what you're doing. It states that it has a 2% accuracy or within a range of 2*C. That should be more than sufficient for the job. Just keep in mind that sitting at idle or holding the engine at 2500 rpm might not create enough load on the engine to show an accurate result.


    Edit: If you want to test the 02 sensors you can use a multimeter and probe the connector for the 02 sensor. You should have the meter set to mV and watch to see if it switches from low to high, back and forth again.

    Do you know the actual P code? It could be a fault for the 02 sensor heater circuit also depending on what the error code is.

     

Share This Page

Search tags for this page
catalityc converter thermometer test
,

check cadillac converter with laser

,

checking catalytic converter infrared thermometer

,
checking catalytic converter with a ir thermometer
,
checking catalytice converter with thermometer
,

how to test catalytic converter with infrared thermometer

,
test catalytic cvonvertor with laser thermometer
,

testing catalytic converter with thermometer

,
testing catcan converter with temp gun
,
type of thermometer on catalytic converter