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  4646 Oakton St (rear), Skokie, IL
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We are providing regular service during this COVID-19 pandemic - our service is deemed essential - We are wearing masks and allowing for minimum contact with social distancing during service!

CHAMBERLAIN model 940CB keyless entry. It transmits using rolling code on frequency 390.

The warranty on the 940CB garage door keyless entry is 1 year from CHAMBERLAIN.

The model 940CB is discontinued.

CHAMBERLAIN model keyless entry instructions and owners manual in PDF format at NO CHARGE!
VIEW / DOWNLOAD by clicking HERE
chamberlain_940cb_om.pdf

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