Compatible with all ALEKO brand swing gate openers and 12/24V DC gate or garage door openers from other brands as well. Three different access modes: works with a password, with ALEKO LM107 ID cards, sold separately, or with a password and ID cards together. Keyboard has a built-in backlight for better visibility and easier operation at night. Pair with ALEKO’s LM107 or LM108 mounting post, sold separately, to make the keypad convenient and accessible. Technical specifications: Idle current: less 30mA; Relative humidity: 10-90 percent; Registered capacity: up to 2000 users.