This Is Very Compact And Designed For Measuring The Diameter Of Finished Zone In Petri Dish, For Determining The Strength Of Antibiotic Materials. This Antibiotic Zone Reader Measures The Diameter Of The Inhibited Zone Within The Range Of 0 To 35mm With Accuracy Of 0.2mm. The Light From Inside Source If The Base Passes Up Through The Transparent And Semitransparent Of The Agar Then To A Reflecting Mirror Situated In An Arm Above The Unit. The Mirror Reflects The Light To A Glass Prism Mounted At The Magnified Image Of The Zone Of Inhibitions Is Clearly Invisible On The Prism.

This Is Very Compact And Designed For Measuring The Diameter Of Finished Zone In Petri Dish, For Determining The Strength Of Antibiotic Materials. This Antibiotic Zone Reader Measures The Diameter Of The Inhibited Zone Within The Range Of 0 To 35mm With Accuracy Of 0.2mm. The Light From Inside Source If The Base Passes Up Through The Transparent And Semitransparent Of The Agar Then To A Reflecting Mirror Situated In An Arm Above The Unit. The Mirror Reflects The Light To A Glass Prism Mounted At The Magnified Image Of The Zone Of Inhibitions Is Clearly Invisible On The Prism.