General description This garage door remote control is a reliable replacement option designed to work with various Crawford Entrematic models. Its compact design allows for easy portability, making it convenient to carry on your keychain. Technical specifications Frequency: 433.92MHz Rolling Code Material: Plastic Dimensions: Measurement allowed error is +/- 1-3cm Compatibility and accessories Compatible with Crawford RCU 433-4K, RCU 433-2K, EA433 2KM, EA433 2KS, EA433 4KS, N002800, T433-4 Works with Crawford Entrematic Magic 600 / Magic 1000 / Ultra (all versions after 2005) / Ultra Excellent (all series after 2005) Includes a key ring for easy attachment to keychains Other information Package Contents: 1 x remote controller Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the actual product