Garage Door Opener Keypad for Chamberlain 877MAX 377LM 977LM Wireless Keyless Entry System with Security+ 2.0 & 3-Channel Control 2025 Enhance garage security with this Security+ 2.0 rolling code keypad compatible with Chamberlain 877MAX/377LM/977LM openers. Program a secure 4-digit code for keyless entry/exit and control up to 3 motor units simultaneously. Features weather-resistant housing with backlit buttons for nighttime visibility and one-touch closing function. Operates on 310/315/390MHz frequency with 100-meter range. Includes pre-synced 9V battery and mounting hardware. Compatible with 1993+ openers using purple/yellow/red/orange/green learning buttons. Not compatible with 200.57933/139.57953 series or Genie models. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.