1000SD · LiftMaster

For 1000SD · LiftMaster, opener brand is LiftMaster; opener model is 1000SD; protocol or era is Billion Code, GREEN (1993-1997); visor remote is 81LM; mini or keychain remote is 81LM, recorded from its source on 2026-08-31; source re-checked 2026-09-16.

Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.

What the source says

1000SD | <https://dooropenersandmore.com/product/liftmaster-81lm-390-mhz-compatible-single-button-visor-garage-door-opener-remote/> 81LM | <https://dooropenersandmore.com/product/liftmaster-81lm-compatible-390-mhz-single-button-mini-garage-door-opener-remote/> 81LM | <https://dooropenersandmore.com/product/liftmaster-878max-wireless-keypad/> 878MAX | Billion Code, GREEN (1993-1997)

— dooropenersandmore.com, retrieved 2026-08-31

Where each value comes from

The value above is stated away from the sentence quoted with the answer, so the passage that states it is shown here too.

— all from dooropenersandmore.com, retrieved 2026-08-31

Source

• dooropenersandmore.comhttps://dooropenersandmore.com/compatibility-charts/liftmaster-compatibility-chart/

Last verified against source: 2026-09-16. Due for re-check by 2027-08-31. This page as Markdown · OKF bundle · full dataset as JSON.