I agree with @Mary-Kay that it should appear somewhere – not sure where though, and hope @ArjunaTHS will consider it. I also see @Katie 's point that maybe owners will think it is condoned if THS includes it. But at least if a prospective sitter knows this, they can either choose not to apply or else apply and discuss it with the owner prior to accepting the sit. I might apply and mention that I would be happy to put the collar on when the dog is out by him/herself but request to leave it off while being walked by me.
I’ve had two sits that used GPS collars on their dogs. The dogs at the second sit did not require walks because they had many acres to run around on. The GPS just showed the owners where the dogs were at night as they ran around. The HO let me download the app so I could see but it didn’t work on my phone I presume because the account belonged to the HO. I was totally fine with this and thought it was a great idea.
My first ever sit had GPS collars and inside cameras in the living room and den. I was a newbie and thought this was just something I would have to accept in this line of work. I wonder now if this was just “insurance” for the HO who was taking a chance on a new sitter with no prior reviews, although I did have excellent references.
I knew I was being tracked as I walked the dogs, I accepted it and almost felt like I was being graded on my performance, so made sure I walked the prescribed distance or longer. This was not a pleasant feeling. I guess I did OK because they wrote that I was outstanding in their review. It was a very short sit and I would not be willing to be tracked now.