RAYNOR model 877MGX keyless entry. It transmits using billion code on frequency 310.

The warranty on the 877MGX garage door keyless entry is 1 year from RAYNOR.

The model 877MGX is still available.

RAYNOR model keyless entry instructions and owners manual in PDF format at NO CHARGE!
VIEW / DOWNLOAD by clicking HERE

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