Replacement 3-Button Transmitter for use with RF340-DRC Overhead Door Control. 340 Mhz 3-buttons include Up, Down & Stop functions. Uses A23 12 volt Battery A YouTube video showing product features and installation is available. Paste this link into your browser. https://youtu. be/qlh93E_aV1Uwirelessfits most commercial garage doorseasy installationModel # KF340-3DC.
