IR Thermometer accuracy

[saor]

Been playing with one and I'll sometimes scan someone twice and the second time the reading is one degree higher (32, then 33). Is this normal and everyone using these things has devices with readings that fluctuate or is this likely a bad unit?

This one:

 

[WAslayer]

The one we have does not fluctuate.. one store I visited this week scanned me at 32.5c... they are definitely not all the same..

 

[Snyper564]

i guess with most things you get what you pay for, i have readings all over the place with some units

 

[mister]

Been playing with one and I'll sometimes scan someone twice and the second time the reading is one degree higher (32, then 33). Is this normal and everyone using these things has devices with readings that fluctuate or is this likely a bad unit?

Some of them are shite. Return it if it's not consistent.

 

[mister]

The one we have does not fluctuate.. one store I visited this week scanned me at 32.5c... they are definitely not all the same..

sounds like it's on the wrong mode.

 

[saor]

i guess with most things you get what you pay for, i have readings all over the place with some units

Ja, went with the more expensive FDA approved blah blah one on takealot and it seems less consistent than some of the cheaper units. Considering returning.
https://www.takealot.com/cem-forehe...nfrared-fda-approved/PLID69043365/description

 

[Nemus]

sounds like it's on the wrong mode.

Yes, this sounds like surface temp rather than Core temp.

I was at TwTyre and measured 31.5.. i said there is something wrong on their settings, and they then scanned the guy behind me who read 36.6, which was followed by a comment to me "See, his is right.."
Imagine how his actually was...

 

[Stokstert]

It also depends on scanning distance, the precise point scanned repeatedly, and hairs in the scan path.

 

[chrisc]

One Makro sell gives the same reading whether you are aiming it at a person or a boiling kettle

 

[Azbubu]

Devi investigated this in the first episode of her new show. Also, all the approvals are most likely fake.

 

[Gordon_R]

Skin surface temperature is subject to so many variables, as to be meaningless as a public health measure IMO. Use as a screening tool only picks up those who are severely ill, which could be determined by visual observation anyway. Clever toys, but no easy way to determine if your unit is faulty or not.

 

[Sinbad]

These things are a joke. I was 32 the other day.

 

[Gordon_R]

These things are a joke. I was 32 the other day.

The meaured values are not 'wrong', but they are only an indirect way of determining the core body temperature, which is an entirely different value. I was screened yesterday while standing in the sun, which is doubly stupid!?

 

[Pineapple Smurf]

they useless
one guy at work other day had a reading of 25 and he looked good