433.92 MHz 2-Button Garage Door Remote Control – Compatible with Ecostar and Liftronic Systems (Pack of 2)

Compatible models: Compatible with Ecostar RSC2, RSE2, RSZ1 & Liftronic 500/700/800 & Porttronic D2500/D5000/S4000 transmitters (433 MHz frequency). Battery included: This garage door opener comes with a 3V CR2032 lithium battery, no need to buy new batteries. Incompatible models: The transmitter is not suitable for Ecostar RSC4-433-BS, RSZ1-433-BS, Liftronic 700-2, or Liftronic 800-2. Portable: The key comes with a key ring for easy carrying. One-year warranty: If you are unable to pair it or have any other problems, please contact us. We offer a 1-year warranty for this universal handheld transmitter with a 433 MHz frequency.