CHAMBERLAIN model 955D receiver. It receives using on frequency 315 MHz, Security plus (315 MHz).
The warranty on the 955D garage door receiver is 1 year from CHAMBERLAIN.
The model is discontinued.
CHAMBERLAIN model 955D receiver instructions and owners manual in PDF format at NO CHARGE!
VIEW / DOWNLOAD by clicking HERE
(0.11 MB in English) This requires Acrobat 10 or higher