If you can't afford a good thermostat, then how are you going to afford to take care of the babies? What about proper housing for the babies? What about a thermostat for their rack or cages? I'd hold off on breeding until you could afford to get the right equipment and afford to care for the offspring. It is the responsible thing to do. Those two thermostats may do the job, but the thermostat on the incubator is the most critical piece of equipment in the breeding process. I have two of them, one to back up the primary. It isn't the area to scrimp when breeding. Lots of things go wrong if you get temp spikes or failures.
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