Replacement remote for Marantec 382, 384, AZ021, 64176 garage door opener. Compatible with Marantec 433.92MHz remote control models. Working frequency: 433MHz, 433.92MHz. Encoding type: Fixed code. Buttons: 2 or 4. Rated voltage: CR2032/12V 27A battery (included). Compatible with the following models: Marantec Digital 382 433 Marantec Digital 384 433 Marantec Digital D302 433 Marantec Digital D304 433 Marantec Digital D313 433 Marantec Digital D321 433 Marantec Digital D323 433 Marantec Command 131 433 Marantec Digital 211 433 Marantec Digital 212 433 Marantec Digital 214 433 Marantec Digital 221 433 Marantec Digital 222 433 Marantec Digital 224 433 Marantec Digital 231 433 Marantec Digital 232 433 Important: Please verify that your original remote is on the compatibility list before purchase. Programming instructions Copy code from original remote: Step 1: Clear previous codes from duplicator - Press buttons A and B simultaneously until LED flashes 3 times. - Release button B while continuing to hold button A, then press button B slowly 3 times until LED flashes. - Release both buttons to complete reset. Step 2: Copy code from original transmitter - Place the duplicator close to the original remote. - Press and hold button A on the original remote, then press and hold button A on the duplicator until the LED flashes. - Release both buttons. The code has been copied. Repeat for additional buttons. Duplicate your existing remote controllers for backup use. Suitable for: - Garage doors - Electronic gates - Home automation systems (e.g., lights) Package includes: - 3 x Remote control - 3 x Battery - 1 x English manual