https://www.chewy.com/brinsea-maxi-ii-eco-manual-30-bird/dp/264765?utm_id=401427327&msclkid=afe85dad6c8516b13f5e3d3fda25cd73&utm_source=bing&utm_medium=cpc&utm_campaign=Shopping-Product Targets-Hard Goods-SSP-DDG&utm_term=4584688614926622&utm_content=All Products
One of my incubators is this ^...
What is manual? Is it the temperature and humidity? Or the turner too?
If its just the temperature and humidity it should be fine. Get 2 thermometers and calibrate them and you'll be good to go.
If it's the turner too, are you prepared at least to turn the eggs twice a day or more everyday/...