Have you added the Teltonika equipment model?

And how did you connect the eye sensor to the FMC150?
If you do it using the MAC of the eye sensor, you won't have those losses anymore.

Hi Cristian,
I have added the model FMC150 as per below.

I have also added it via MAC as per below as I believe that's the recommend way but I still experience this issue.

Kind Regards
You should be able to use computed attributes to remove values, but your expression doesn't really make sense to me. Your output attribute doesn't match and else clause also doesn't match.
Hi Anton,
I just realised my mistake, the tracker won't check in for another hour, does that look better?
eyeTemp1 == 250 ? null : eyeTemp1
Kind Regards
Thatguy And do you have the eye sensor settings?
First update the firmware, then configure them as follows:

Hi Cristian - it is on the latest firmware but will change the settings to match yours - thank you.
Hi All,
I have an eye temperature occasionally sending data to a FMC150, occasionally when the FMC does not get the data it will send a reading of 250 degrees as default which is not a problem however when looking at the chart data it really does not represent the true picture of the temperature
I was thinking to see if I can ignore the readings of 250 by using the expression below, I have also linked it to the device but it doesn't seem to be working - just to put out there when I connected the eye temp the traccar server picked it up with the attribute eyetemp1 by itself.
Does anyone know what I have missed please?
Kind Regards