HEEPDD LED Egg Candler Lamp - Egg Tester with Cool Light for Duck, Goose, Quail & Chicken Eggs - Portable Egg Incubator Accessory (Blue, Batteries Not Included) - Perfect for Poultry Farming, Hatching & Egg Quality Testing at Home or Farm

Specification: Item Type: Egg Tester Material: Metal, Plastic Application: Cool Light Egg Tester Applicable Object: Chickens, Geese, Quails, Ducks, Pigeons, Birds, etc. Battery Type: 3 x AAA Dry Batteries (not included) Egg Detection Method: The First Test: Chicken embryos hatched for 5 to 6 days, duck embryos for 7 days, and goose embryos for 8 days. The purpose is to observe the development of embryos and select infertile eggs. Dead and cracked eggs. At this time, the embryo develops normally, the blood vessel is clear, and it is radially distributed. The expansion surface accounts for about 4/5 of the egg body. When the egg is defatted, there are evident black spots, commonly known as "single beads". The Second Test: Chicken embryos were performed over 10 days, and duck embryos and goose embryos were performed over 20 days. Package List: 1 x Egg Tester (Battery Not Included) 1 x Lampshade