The Linear MegaCode ACT-21 one-button mini keychain garage door opener remote from Garage Door Supply Company is a 318MHz remote that's compatible with all Linear MegaCode 318MHz garage door operators, gate operators and receivers. This block-coded ACT-21 remote has no switches; program by pushing the button. A 3-volt lithium coin cell battery and key ring are included with your Linear MegaCode mini remote.
- Mini keychain-style remote
- Compatible with all Linear MegaCode 318MHz garage door/gate operators, receivers
- Push-button programming; no dip switches
- 3V lithium coin battery and key ring included