This heavy base mechanical unit never needs batteries and will provide years of durable use.

Blood Cell Counters are a great addition to the Aquatic Sampling Lab.  Researchers can count up to five separate varieties of invertebrates and have a collective total added up in the sixth counter window.  Simply place a strip of label tape across the blood cell labels and count whatever you want.

• Heavy duty, multiple-cell counter records up to 999
  
• Five individual windows marked for Baso, Eosin, Mono, Lymph, and Poly; one totaling window with red numbers