Labtron Biological Microscope LBM-A12 is designed for microscopic examination using a finite optical system and 4×, 10×, 40×, and 100× achromatic objectives with oil immersion. A 3W adjustable LED provides controlled illumination, while coaxial coarse and fine focusing with 0.002 mm adjustment intervals supports precise specimen focusing. Manufactured for bacterial observation, cell studies, and routine diagnostics in medical laboratories, university teaching facilities, and agricultural research, this biological microscope supports laboratory specimen analysis.