LIFTMASTER model 893MAX transmitter. It transmits using on frequency 315 MHz, 390 MHz, MyQ (310, 315, 390 MHz), Security plus (390 Mhz), Security plus (315 MHz). It has 3 button(s).
The warranty on the 893MAX garage door transmitter is 1 year from LIFTMASTER.
The model 893MAX is still available.
LIFTMASTER model transmitter instructions and owners manual in PDF format at NO CHARGE!
VIEW / DOWNLOAD by clicking HERE
(3.26 MB in English) This requires Acrobat 10 or higher