GoodPotty Jazz Hi Allison, The Pad is sitting on top of ABS plastic board with sensor strips inlaid into the the plastic. Jazz would circle for ever and not get a treat, it was obvious the she was not happy, but it did not take long for her to figure it out. The treat bowl has a small microprocessor inside than sense's the urine and activates the recorded message and turns the tray to expose the treat. Thanks Dave |