This Linear DR / DR3A / DNR00001 is a single channel 310 MHz radio frequency replacement garage door radio receiver. This unit is perfect for an application where you may have an older garage door opener that needs a new radio receiver. Installation is simple you can either mount the unit directly on to the opener if your old opener has 3 screw terminals on the back of it. Then set the 8 on/off dip swtiches on the remote control(s) and your ready to go. Please note: If your opener has 2 or 4 terminals you will want to add the 3 Tab to 2 Terminal Adapter to your order as in many cases the unit will not work without it in these applications. The DR3A is compatible with the following Linear Delta 3 type radio remotes: DT, DT-1, DTC, DTD, DTA, DT-2A, and Mini-T. Product Features: Activates one devices Wire lead antenna 24 Volt model Mounting bracket supplied Power: 24 Vac/Vdc Frequency: 310 MHz Codes: 128 (set by dip switches) Dimensions: 5.5 x 1.25 x 4 inches One year manufacturers warranty PROGRAMMING MANUAL
