SMG-001 Merlin M842 M832 M230T M430R M844 Garage Door Remote Control 433.92MHz Rolling Code Gate Opener Key Fob Please note: the item you will receive is being pointed to by the arrows which is an aftermarket compatible remote Compatible with: M230T (Prolift) M430R (Prolift) M832 (Green Remote) M842 (Green Remote) M844 (Green Remote) Please Note: Not compatible with Blue Merlin Remotes (Click Here) or Merlin+ or Merlin+ 2.0 models or motors prior to July 2001 Please Note: Button colour may change from green to white with numbered buttons depending on availability If your remote has blue buttons please Click Here Features: LED Indicator Slim Design Long Range Compact Pocket Size Manual Instructions Included Controls up to 4 doors Button Slide Protector Specifications Item condition - New Third party remote control. Not made by Merlin Decoder IC - Rolling Code. Frequency - 433.92MHz. Operating voltage - 12V DC 27A (Free battery included) Transmit distance - 25-50m in open space. Open space means no any interference. No walls, no doors, no trees or any other obstructions. Interference like garage door or brick wall can reduce remote control range significantly. What is Included Remote control Battery Keychain English instruction manual