Need instruction manual for equity wireless thermometer

Hi George,
I believe your Equity wireless thermometer is manufactured by LaCrosse Technology. Here is a link to their website:

http://www.lacrossetechnology.com/

From this page, you can search the type of wireless thermometer or weather station you're trying to use. (You didn't specify a model number in your request).
Also notice that there is link on that page for Support; clicking that will take you to the Manuals link. You will need to find your proper model number in the drop-down menu.
Also, there is a Contact link, so you can contact them directly for further assistance if you are unable to find your model's information.

Good luck, George! Hope this helps!