Model: PXS, PXS, PXS III (they has a little difference outside.)

Specification:

PXS-1020
Eyepiece 10× 10× -20×
Optional eyepiece 20× 20× -40×
Objective Lens: 1× -2×
Diameter field of view (mm) 22-11

PXS-1030
Eyepiece 10× 10× -30×
Optional eyepiece 20× 20× -60×
Objective Lens: 1× -3×
Diameter field of view (mm) 22-7

PXS-1040
Eyepiece 10× 10× -40×
Optional eyepiece 20× 20× -80×
Objective Lens: 1× -4×
Diameter field of view (mm) 22-5.5

PXS-2040
Eyepiece 10× 20× -40×
Optional eyepiece 20× 40× -80×
Objective Lens: 2× -4×
Diameter field of view (mm) 11-5.5

ALL:
Work distance(mm) 88
Up down /focusing range(mm) 100 / 65
Illumination
PXS/PXS-II: Updown adjustable lingting halogen 15W / 6V
Power: 110-220V/60-50Hz
PXS-III: Optinal: Ring fluorescence lighting 8W/110-220V/60-50Hz
Optional: Micrometer eyepiece 10× Micrometer ruler: 0.1 / 50mm