WAYNE-DALTON model KEP-IV keyless entry. It transmits using rolling code on frequency 372.
The warranty on the KEP-IV garage door keyless entry is 1 year from WAYNE-DALTON.
The model KEP-IV is still available.
WAYNE-DALTON model keyless entry instructions and owners manual in PDF format at NO CHARGE!
VIEW / DOWNLOAD by clicking HERE
(1.59 MB in English) This requires Acrobat 10 or higher