Liftmaster TX2EV TX4EV TX4EVS TX2REV Garage Door Remote Control 433.92mhz Transmitter Liftmaster TX2REV TX2EVS Gate Opener Compatible with: TX2EV, TX4EV TX2EVS, TX4EVS TX2REV, TX4REV Compatible with receivers only: All these receivers working on dual frequency 433.92MHZ. and 868.35MHz. Your remote control may be 868MHz. So that's why so important check receiver model before purchase. LiftMaster LM55EVS \/ LM60EVS \/ LM80EVS \/ LM100EVS \/ LM130EVS \/ LM50EV \/ LM100EVO \/ LM650EV Chamberlain ML550EV \/ ML800EV \/ ML1000EV-F \/ ML1000EV-S \/ ML510EV Basic \/ ML700EV Comfort \/ ML1000EV Premium Access to receiver required. Please make sure you got access to your receiver\/opener before purchase. Make sure your original remote control model code exactly same. Make sure your receiver\/opener model listed on compatible list. Not compatible with TX2UNI, TX4UNI, TX4UNIS remote controls. Specifications Item condition - New Third party remote control. Not made by LIFTMASTER Decoder IC - Rolling Code. Frequency - 433.92MHz. Operating voltage - 12V DC 27A (Free battery included) Transmit distance - 25-50m in open space. Open space means no any interference. No walls, no doors, no trees or any other obstructions. Interference like garage door or brick wall can reduce remote control range significantly. Feature 1. Free Battery 2. Free Coding Instructions 3. Free Keychain 4. Heavy Duty Design 5. In-built Battery 6. Button Protector Include * Remote Control * Battery * Keychain * English Manual