LINEAR model DT4A transmitter. It transmits using on frequency 310 MHz. It has 1 button(s).

The warranty on the DT4A garage door transmitter is 1 year from LINEAR.

The model DT4A is still available.

LINEAR model transmitter instructions and owners manual in PDF format at NO CHARGE!
VIEW / DOWNLOAD by clicking HERE
linear_dt4a_om.pdf

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