You will find the pdf instructions for the discontinued Hinged door incubators on the product page listed below. The instructions can be found under the "Manuals & Instructions" tab

https://lifelinepetsupplies.com/lifeline-pet-supplies-large-hinged-door-incubator-with-digital-humidity-package.html

Question: Where can I find my product(s) Manual or Instructions?

Answer: Product pdfs if available can be found directly on the product page under the 'Manuals & Instructions' tab. Please see the screenshot below for the location of these pdf's. These can be viewed, downloaded, or printed at your convenience.