Stand type digital microscope: Up to 140x Magnification (x): 4-43 (for a 4.3-inch monitor) Approximately 200x on a PC equivalent to 20 inches Frame rate: 30 Power supply (V): 5 Width (mm): 182 Depth (mm): 120 Height (mm): 60 Effective pixel count: 1 million pixels Interface: microUSB Work distance (mm): 20-105 *取决于支架运动的上限