This new testing unit makes it ideal to do much better blood testing for Pullorum. You can do it quicker and more efficiently. Square inch grids have been etched in the white opaque test plate. The test plate diffuses light evenly, and makes a sharp differentiation between positive and negative blood samples. The unit is light weight yet strong. It can easily be washed and comes complete with a 60 watt light bulb and a No. BTI3012 combination bleeder and loop. One end is made with a compartment to carry your antigen or anything else you may need in moving from place to place. Note: to test you will need to purchase #ANTIG Pullorum antigen.