These mats are currently on sale for 50 and $70. They will give you an audible alert when the dog steps on it, and the $70 one will send you a text message. Both will hold a pee pad. House breaking just got easier!
https://shop.mashable.com/sales/bar...smart-wifi-enabled-dog-training-mat&scsonar=1
https://shop.mashable.com/sales/bar...smart-wifi-enabled-dog-training-mat&scsonar=1