CHAMBERLAIN model C940, C943, C945 transmitter. It transmits using on frequency 433 MHz. It has 1, 3 button(s).
The warranty on the C940, C943, C945 garage door transmitter is 1 year from CHAMBERLAIN.
The model C940, C943, C945 is still available.
CHAMBERLAIN model transmitter instructions and owners manual in PDF format at NO CHARGE!
VIEW / DOWNLOAD by clicking HERE
chamberlain_c940_c943_c945_om.pdf
(0.32 MB in English) This requires Acrobat 10 or higher