Lost GT3X ActiGraph in Omni Santry area on Tuesday 2nd December

It a small red monitor with a black clip that can be worn on a waistband, it monitors activity, i had it as part of a study, so if you found it can you please contact me. I was in alot of shops in Omni that day and was also in Aldi on Santry lane, the kids were off school so maybe a kid picked it up not knowing what it was.