LIFTMASTER model STAR450-315 receiver. It receives using on frequency 315 MHz, Security plus (315 MHz).
The warranty on the STAR450-315 garage door receiver is 1 year from LIFTMASTER.
The model is still available.
LIFTMASTER model STAR450-315 receiver instructions and owners manual in PDF format at NO CHARGE!
VIEW / DOWNLOAD by clicking HERE
liftmaster_star450_315_om.pdf
(0.43 MB in English) This requires Acrobat 10 or higher