Temperature discrepancy - Aeon Multisensor 6

I’ve got a number of ‘things’ sitting on the bench in my lab. And several of them include temperature sensors.

One thing I’ve noticed is that my Aeon Multisensor 6 (Gen 5) reads two degrees (Centigrade - I’m in the UK) higher than my other sensors.

Anyone else noticed this? I’ve seen some online reports of the device reporting higher temps when powered by USB, but mine is currently running off batteries.

Thanks,

P.