| A12.0909 Biological Microscope | A | B | C | A1 | B1 | C1 | 
    | Head | Monocular Head, 30° Inclined, | ● |  |  | ● |  |  | 
    | Binocular Head, 30° Inclined, Diopter Adjustable +/-5°, Interpupillary Distance 50~75mm |  | ● |  |  | ● |  | 
    | Trinocular Head, 30° Inclined, Diopter Adjustable +/-5°,Interpupillary Distance 50~75mm, Light Split Ratio 80:20 |  |  | ● |  |  | ● | 
    | Objective | Achromatic 4x,10x,40x(S),100x(O,S) | ● | ● | ● |  |  |  | 
    | Plan 4x,10x,40x(S),100x(O,S) |  |  |  | ● | ● | ● | 
    | Eyepiece | WF10x/18mm | 
    | Nosepiece | Backward, Quadruple Nosepiece | 
    | Working Stage | Double Layer Mechanical Stage, Size 132*140mm, Moving Range 50*76mm, Precision 0.1mm | 
    | Condenser | Abbe N.A.1.25, With Iris Diaphragm, Fixed But Center adjustable | 
    | Focusing | Low Position Designed, Coaxial Coarse & Fine Focusing, Coarse Focusing Range 25mm, Fine Focusing Scale 0.002mm, With Tension Adjustment, With Upper Safety Stop | 
    | Light Source | 3W LED High Brightness | 
    | Power | External Wide Voltage AC Adapter, 100V-240V_AC50/60Hz Input, DC6V 2A Output. | 
    | External Wide Voltage AC Adapter, 100V-240V_AC50/60Hz Input, DC7.5V 2A Output. (Optional) | 
    | Internal Switch 100V-240V_AC50/60Hz (Optional) | 
    | Internal 4 Pieces Rechargeable Batteries, External Wide Voltage Battery Charger, 100V-240V_AC50/60Hz Input, DC6V 1A Output. (Optional) | 
    | A12.0909 Biological Microscope Optional Accessories | 
    | Eyepiece | PL10x/18mm with Pointer, High-Eyepiont | E51.0906-1018P | 
    | PL10x/18mm with Reticle, High Eyepoint | E51.0905-1018PR | 
    | Adapter | C-Mount 1.0x | A55.0926-10 | 
    | C-Mount 0.35x | A55.0926-35 | 
    | C-Mount 0.50x | A55.0926-50 | 
    | C-Mount 0.67x | A55.0926-67 |