... H )(mm)NW (kg)GW (kg) Colony counter YLN-30Automatic , optics magnifled 8X,transmission reflection ... of culture case; 90m m,50. 310*210*80 2 2.5 Voice Count Off Counter YLN ... -30AAutomatic , optics magnifled 5X,10X transmission reflection illuminate, Counting scope 0-999, power; 20W,the size of culture ... case; 90m m,50.Count off with Voice autmatically 310*210*260 2.5 3.8 colony counter ...