Replacement for OCDTR3 Overhead Door Legacy Python Garage Door Opener from 1997manufacture date to current Key benefits Restores reliable remote control to legacy Overhead Door / Python openers so you can open and close your garage from the car without rewiring or replacing the opener. Improves security with AutoSeek Rolling Code technology to prevent replay or codeguessing attacks. Durable construction and an energyefficient chip reduce the need for frequent replacements and extend battery life. Strong 164 ft signal range provides consistent operation across typical driveways and residential parking situations. Compatibility Compatible with GITR3, OCDTR3, GIT1, ACSCTG Type1, ACSCTO Type 1, 1704, ACSCTG Type 3, ACSCTO type 3, OCDT3, GIC3, OCDT3, GIC3, GIT3, GIT3, ACSOT, B8QACSOT, OC2T3, B8Q 315390T, 2133A 315390T, ocd3903. Primary functions and performance Function: wireless remote transmitter for opening and closing compatible garage door openers. Security: AutoSeek Rolling Code encrypts each transmission to prevent unauthorized access. Range: effective operating distance up to approximately 164 ft in open conditions; actual range depends on environment and vehicle shielding. Durability: ABS alloy casing provides impact resistance and long service life; housing is built to withstand normal drops and handling. Power efficiency: builtin energyefficient chip helps extend battery life between replacements. What makes this product stand out Direct replacement for legacy OCDTR3 remotes, supporting models produced from 1997 to present, avoiding compatibility issues with newer, incompatible remotes. Combines modern rollingcode security with a rugged casing suited to everyday use. Simple, practical solution for restoring function to older garage door systems without opener modification. Typical use scenarios a lost or broken remote for an Overhead Door / Python opener manufactured from 1997 to current so your household regains convenient, secure remote access. Add a spare remote for a second vehicle or for family members who need independent access without reprogramming the main unit. Install as a replacement for a worn remote in rental or fleet vehicles that use legacy OCDTR3compatible openers. What's included / notes Replacement remote transmitter (battery not specified — use the original or check your opener's manual for the correct battery type). Designed to program to the compatible opener models listed above; follow your opener's programming instructions for pairing. Technical attributes (summary) Material: ABS alloy casing (drop resistant) Security: AutoSeek Rolling Code Range: up to 164 ft (environment dependent) Compatibility: see full list above (models from 1997manufacture date to current) For reliable replacement of an OCDTR3 remote, this unit restores secure, longlasting remote control for legacy Overhead Door / Python garage door openers.