TTHR-3
| Optical System | Infinity Optical System |
| Head | 1 pc Trinocular Head, 2 pcs Binocular Head, Inclined 45°, Interpupilary Distance 50-70mm |
| Eyepiece | WF10x/22mm |
| Objective | Infinity Plan Objective 4x/0.10 |
| Infinity Plan Objective 10x/0.25 | |
| Infinity Plan Objective 40x/0.65 | |
| Infinity Plan Objective 100x/1.25, Oil | |
| Nosepiece | Quarduple |
| Focus System | Low Positioned, Coaxial Coarse & Fine Focusing System, Fine Focusing Reading 0.002mμm |
| Stage | Double Layer Mechanical Stage Stage 180*160mm， Moving Range 80*50mm, Double Slide Holder |
| Condenser | Abbe Condenser N.A.1.25 |
| Light Source | Kohler Illumination, 12V100W Halogen Lamp, With Field Diaphragm, Iris DIaphragm, Contrinue Brightness Adjustable |
| Curisor | LED Cursor Pointer |
| Power | AC 85~230V |
