S81120 Product Manual In this article Looking for the manual for this item? Click the matching model number of your unit below. Model numbers are located on the back of the display around the battery cover. Model # S81120 Model # S81120V2 Related articles S81120 Set-Up Basic Restart/ Missing Outdoor Temperature Manuals - Where can I find a manual for my station? Customer Support Contact Information Where can I find compatible replacement sensors or parts?