Anderic Substitute for Linear ACT31B ACP00879 keychain 1-button 318 Mhz Garage Door Opener Remote Control [890MAX]

The 890MAX is the compatible replacement for the ACT31B, a single-button keychain remote operating at 318 MHz for garage door openers and access control systems. Factory-precoded with unique ID and facility codes, it delivers block-coded security comparable to traditional Wiegand cards and fits conveniently on a keyring. Programming into system memory requires only entering the first and last number of the coding block into your controller via software or manual keypad entry. Ideal for applications requiring straightforward single-function remote control.