Thanks for telling us about the 4.0 integrated keypad with remote , for me I'm short and struggle with the keys and with remote it is a piece of cake ! The company rvlock.com said I could pass this information along to you also ! They gave me a discount for ordering the 4.0 , remember this is a lock that is for 5th wheel or travel trailers and I guess at a later time will have for class A also . When you decide to order this particular item and when you get to checkout there will be a spot where it will ask you for a code if you have one and enter FR and will get another free remote key fob and free shipping . What a deal , they said they would honor that code , just wanted other people to get good deal also. Hope this helps someone else