I got one that has a probe, like this one http://www.walmart.com/ip/26386556?wmlspartner=wlpa&adid=22222222227018090240&wl0=&wl1=g&wl2=c&wl3=40345577072&wl4=&wl5=pla&wl6=78311113952&veh=sem
I have the Little Giant 9200 still air incubator. I thread the cord through one of the holes at the top...