IncuTherm Digital Thermometer Hygrometer with Min/Max Memory $21.76 B004XNMG4S
HovaBator Advanced Egg Incubator Combo Kit: includes incubator, fan kit, egg turner, digital thermometer/hygrometer $147.83 B004XNVCS4
Battery Clip Connector for Genesis 1588 Egg Incubator $19.64 B01A03LC4E
225 Watt Coil Heater for Cabinet Egg Incubator 110V Heating Element B01A06IVEK