CHAMBERLAIN model 956CB transmitter. It transmits using on frequency 315 MHz, Security plus (390 Mhz). It has 3 button(s).

The warranty on the 956CB garage door transmitter is 1 year from CHAMBERLAIN.

The model 956CB is still available.

CHAMBERLAIN model transmitter instructions and owners manual in PDF format at NO CHARGE!
VIEW / DOWNLOAD by clicking HERE
chamberlain_956cb_om.pdf

(0.17 MB in English) This requires Acrobat 10 or higher