LIFTMASTER model 66LM keyless entry. It transmits using billion code on frequency 390.
The warranty on the 66LM garage door keyless entry is 1 year from LIFTMASTER.
The model 66LM is discontinued.
LIFTMASTER model keyless entry instructions and owners manual in PDF format at NO CHARGE!
VIEW / DOWNLOAD by clicking HERE
(0.10 MB in English) This requires Acrobat 10 or higher