DNT00002A is a replacement remote control for Linear Delta 3 garage door openers operating at 310 MHz. This visor-clip remote features 8 dip switches for easy code programming and is compatible with Delta 3, DTC, DTD, and DT systems. To verify compatibility, check that your existing remote or garage door opener has 8 dip switches. The dip switch count on your opener's back panel matches the remote requirement. Specifications: - Model: DNT00002A - Frequency: 310 MHz - Dip Switches: 8 - Form Factor: Visor clip - FCC ID: EF400205