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External receivers

Gates and some commercial / add-on radios follow the receiver model on the operator — not only the residential learn button.

Security+ 2.0 receivers

Receiver	Compatible remotes (examples)	Keypad
`850LM` / `860LM` / STAR1000	`891LM`, `893LM`, `890MAX`, `893MAX`, `892LT`, `894LT`, `811LM`, `813LM`	`877LM`, `878MAX`

Detail page: 850LM / 860LM.

Security+ 315 MHz receivers

Receiver examples	Legacy remotes	Current remotes / notes
`312HM`, `355LM`, `365LM`, STAR450-315	`371LM`, `372LM`, `373LM`	`893MAX` / `890MAX`; `892LT`/`894LT` replace `372LM`/`374LM`

Security+ 390 MHz receivers

Receiver examples	Legacy remotes	Current remotes / notes
`412HM`, `635LM`, STAR450-390	`971LM`, `972LM`, `973LM`, `974LM`	`893MAX` family; `892LT`/`894LT` replace `972LM`/`974LM`

DIP / Billion Code receivers

Receiver examples	Legacy remotes	Current remotes / keypad
`412LM`, `422LM`, `423LM`	`81LM`, `82LM`, `83LM`, `61LM`, `63LM`	`893MAX` / `890MAX`; keypad `878MAX` (was `66LM`)

Sources