Try a search using a search engine such as duckduckgo (), using the search phrase "Hills Reliance XR Pro" and look at the resulting web pages. (There many search engines ... at least 17 search engines you can use instead of Google!!).
Also, try a search of the "manualslib" website, where there is a copy of the "Hills Reliance 8 Installation & Programming Manual", which apples also to the Reliance 12 and Reliance 128.
I hope that this helps.
Failing that, contact one or all of the outlets for Hills security products...use a SEARCH engine. It's not at all difficult.
(I must be getting soft in my old age....I don't usually provide this much advice to a one-poster newcomer to the forum).
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