Just received mine the other day and used the adhesive strip to mount it on the left hand side of the fel mount. (Don't know the formal term for this part of the tractor, but if you have a fel it is the part that is, more or less, permanently mounted to the tractor). I found this location quite convenient as I generally watch the left side as a guide when I am mowing.
I got my tiltmeter from Rick at R&B about a week ago. I mounted it in the middle of the grill guard that is at the front of my B7500 and is part of the structure for my 302 FEL, where I can watch it at all times at the bottom of my line of sight. To mount the tiltmeter, I simply used the foam type of double stick tape on the bottom of the meter, and it has held on very tight. I am extremely happy with the tiltmeter, which allows me to tell instantly what degree of incline I am on - it should be a standard piece if OEM equipment on new tractors. Thanks Rick!