If you have a Suro 20 you need to get a thermometer and hygrometer my humidy waz right but it said my tep waz 99.7 but i got a thermometer and it waz 98.4 so if you have one and are geting bad hatch rates thes what you need to try
i got this one http://cgi.ebay.com/DIGITAL-INCUBAT...emQQptZLH_DefaultDomain_0?hash=item35a56c37dd
i got this one http://cgi.ebay.com/DIGITAL-INCUBAT...emQQptZLH_DefaultDomain_0?hash=item35a56c37dd