Check the listing for details. Universal Wireless interface module for Home Automation. Chamberlain LiftMaster. Condition: New. Listed at 70.04 USD. This product is compatible with any Chamberlain, LiftMaster or Craftsman opener since 1993 (and most Raynor openers), including 315MHz, 390MHz, "Billion Code", Security+ and Security+ 2.0 -- basically any opener with a yellow, purple, red/orange or green learn button. This is the universal version of our standard wireless interface module. Stripped, tinned and jacketed 22 gauge wires (approximately 8.5" long) connect to any dry contact I/O relay output. Full instructions included. This interface module simply connects to your existing control system and provides a wireless connection to your garage door opener (LiftMaster, Chamberlain, Raynor and Craftsman AssureLink). It pairs with, and appears to the opener as an additional remote control. Requires one-time pairing with the opener. The module is capable of controlling up to three garage door openers (all controlled openers must be in close enough proximity to be accessed from the location where the module will be controlled -- if you can operate all openers with a visor or key fob remote from the desired location, then a multi-channel module will work for your application). eBay does not allow variations in this particular listing category, so you will need to purchase the additional channel upgrades in addition to the module. Add all items to your cart before checking out. For additional channel upgrades, see listing https://www.ebay.com/itm/274652720346 -- in addition to the module, you will need (1) channel upgrade for a 2-channel module, or (2) channel upgrades for a 3-channel module. If you have any questions, please ask prior to purchasing. Each module is hand built and individually tested. The module measures 2-3/8" x 1-7/16" x 5/8" and is covered by a 12-month warranty. See my other items for additional custom garage door access solutions. Take a look at the listing photos. The circuit board is a wireless transmitter that is compatible with virtually all LiftMaster, Chamberlain or Craftsman garage door openers manufactured after 1993. If your opener has a yellow, purple, red/orange or green learn button, then this will work for you! Full step by step instructions will be included with your order. Note about shipping: Shipping costs are calculated by eBay based on the weight of your order and your location. We do not have any control over the rates calculated by eBay, and do not profit from these costs. All orders go out the same or next business day! Positive feedback will be automatically left for the buyer as soon as seller feedback is received.