This is an ideal testing unit for pullorum. Many of you are now being required to have this test done for your show birds, or when selling your chicks to other states. One inch square grids have been etched in the white opaque test plate. Test plate defuses light evenly and makes a sharp differentiation between positive and negative blood samples. Unit is light weight yet strong. Easily washed and comes with a 60 Watt light bulb, bleeder and loop. Antigen stain is not included; sold above.