This wireless keypad is a great addition to your home security system. With its alpha numeric features, you can easily operate your DSC alarm and ensure the safety of your home. The unit is compatible with ADT and operates on RFI smart home protocol. This blue keypad is in good condition and comes with everything you need for installation, except for the battery. It is a great unit for those who prioritize a wireless connection and comes in a unit quantity of one. Add this to your cart today and have peace of mind knowing your home is secure.