Don't be fooled.
Or better yet, stay far away from this trend. Don't sell "fever cameras" They will go out of style soon and then we will all look like fools for spending all this money needlessly.
Don't Be Fooled By Hot Water Bottle Fever Camera Demos
JH
***** ****** ******** **** ** **** buyers (*** **********) **** *** ***** bottle *****. ** ******** *** ******** from *** **** **** - ***** systems **** **** ***** ******** ************.***** *** / ***** ***:
****'* ****** ** **** **** ****** see ** *** ***** "***, **** thing *****. ** ***** ******, ****** temperature. *** ***** ******, *****!"
Common ***** ******
*** *** ***** ****** ** *** go-to **** ** ***** ****** ********* around *** ***** **** ** *****, Hikvision, *** ******, ******** ***** *****.
Problem: *** ***
*** ******* ** ******, *** ***** can ** ****** *** - ***°*, 120°F, ***. **** ******* * ****** can ****** * ***°* ****** **** not **** **** ** *** ********** detect ***°* ** ***°*, *** **** temperatures **** ****** ***** ******** ** with * *****.
**** ****** ***** ** ** ******* enough ** *********** ******* **°* *** 100°F, * **** ****** **** **** the ***** ****** ******** *** ***** to **** *** **** * ***** bottle ** ***°* ** **°*.
Solution **** *** ******
** *** ****** **** ** *** if * ****** *****, *** **** to ******* **** ******** *********** **** hot ****** ** ********* ***°* ** 101°F, *** ************ **** ****** ****** with ****** ****. * ****** **** an ****** ***°* **** *********** ** not ***** ** ** ******* ******* anyone's ********.
**** ** *** ** ** **:
**** ***'* ******** **** * ****** water ****** / *****:
*** *** ** ** **** ***'* forehead ********. *** **** ** ** get ** ***°* ** ***°* ** fairly ******* * '*****'. **** ******* on *** *** *** ***** ****** the ***** ** *** *** *** easily ********** **** * *** ******* to *** ******* ** *** *** right ******** ** ******* * *******'* forehead ** *** ******* *****.
**** **** ** ***** ** *** camera ** ******** *** *** *******:
***********, **** * ****** ****** **** in **** * ********** ****-**** ** thermometer *** ******* *** *******'* ***********.
******* *** *********** **** *** ***** camera / ******** ******** ** **** of *** ******** ** ***********.
**** *** *** *** ******* ** ground ***** (**** *** ********** ******** IR ***********) ****** **** ****** ******* around **** * **** *** ***** bottle ******* ** ***'* ********.
***'* ** ******, *** **** ******** method ** ****** ****** ******** ******. In*** ******* ** **+ '*****' *******, ** ***** **** ******* **** issues ********* ********** ******** ************, ******* to ***** ********* **** '******' / statistically ******* ************, ***** ******** * false ***** ** ****** *** **** of ********** ****** ******* ****** ***'* facility.
Comments (14)
UI
Undisclosed Integrator #1
Aug 24, 2020
Chris Bentley
Aug 24, 2020I just don't understand this, as you have reported some of these systems work well if they are set up and operated correctly.
Why are they still being advertised in this obviously false way.
The argument about how effective they are is something else entirely :)
Armando Perez
Aug 24, 2020When I ran my tests I microwaved a bag of rice and held it to the subjects forehead for a minute or so, verify with handheld, then test.
Potayto/Potahto
Surprised what passes a proof of functionality these days.
Scott Bradford
Aug 24, 2020Similar. In testing my unit, I put a wet towel in the microwave for 30 seconds, then held it to my wrist, then did the scan. When I held the towel up directly, I had a 160f fever :)
UM
Undisclosed Manufacturer #2
Aug 24, 2020Great commentary!
What still amazes me is having to use an accurate ~$125 device to calibrate one’s forehead to be used by an inaccurate ~$5000 device! Go figure!
Armando Perez
Aug 24, 2020
Robert Wren Gordon
Aug 24, 2020Sadly, the hot-water-bottle demonstrations are not just the domain of camera salesmen.
From the BBC (skip to 0:20 for the hot water demonstration):
From ITV News (skip to 1:30 for the hot water demonstration):
It's a shame that journalists at major, respected news outlets are repeating these hot-water-bottle demonstrations in their segments, which in turn only promotes further adoption of 'fever' camera systems.
JH
John Honovich
Aug 24, 2020It's a shame that journalists
The problem is that this market exploded so quickly so it was really hard to immediately understand what was happening. The hot water bottle demo 'works' at some very basic level (it can tell if the hot water bottle is 5 or 10 degrees warmer than a normal human). The problem is that these systems, to work for fevers (its intended purpose), needs to work at 1 or 2 degrees differential, which is the real practical problem for 'fever' cameras.
UI
Undisclosed Integrator #3
Aug 24, 2020Great... now I know my recent internal testing was rubbish! This certainly explains the results -- boiling flesh but a temperature of 102.7 degrees. Back to the testing.
dk
douglas kelly
Aug 24, 2020I can't see selling these without the explicit acknowledgement from the buyer that subjects with an elevated temperature are estimated (in the last thing I read, seems to be a moving target) to only represent about 25% of the possible infectious carriers of the virus. Other infectious persons can be prior to a fever stage, or asymptomatic.
UI
Undisclosed Integrator #3
Aug 24, 2020elevated temperature are estimated (in the last thing I read, seems to be a moving target) to only represent about 25% of the possible infectious carriers of the virus.
I suspect that by the end of the year there will be a lot of end users looking at their screening cameras in disgust, possibly while they sit in their otherwise empty school or workplace.
UI
Undisclosed Integrator #5
Aug 24, 2020And also second thoughting the salesperson who sold it to them.
UI
Undisclosed Integrator #4
Aug 24, 2020UE
Undisclosed End User #6
Aug 24, 2020All of these comments are why I stopped conversing with management on this topic. They aren't bringing it up and I'm not talking about it again unless they do. I do like the wall mounted IR thermometers and continue to explore them as an approach for temp checks (we are implementing weekly Covid tests for designated onsite personell anyway).
Sean Patton
Sep 04, 2020Hikvision hosted a webinar marketing its DS-K1T671TM screening terminal using a hot water bottle/mug for demonstration of the system being able to detect high temperatures on a forehead (compared to systems with a narrow scanning area):
There is no ground truth of the water bottle temperature in the Hikvision demo, and it could easily be 104 or higher.