I cannot link the two together but LaCrosse in their compatibility chart
https://cdn.shopify.com/s/files/1/0035/7443/1790/files/Compability_Chart_Updated_032520.pdf?v=1594494575 says the LTV-R2 should pass through to the app only. I cannot get my display to receive the LTV-R2. I have followed the reset procedure twice and no luck. I even had LaCrosse send me a replacement unit LTV-R2. With no luck in binding the two together. I added the rain sensor on my app by scanning the barcode according to their online videos and manual and still no luck. Could this be an error on LaCrosses's part?