160-200 times with light microscope jewelry jade antique treasure identification magnifying glass

Product Introduction:
 
Magnification: 160 times to 200 times continuous variable magnification microscope
Lens: High-power lens optical glass (no harm to the eyes)
Color: Black
Material: ABS resin
Power source: 3 AG10 button cells
Dimensions: 8.5cm (length) * 3.2cm (width) * 1.8cm (thickness)
Use: Aim the microscope at the object to be observed, adjust the magnification converter to the appropriate magnification (160-200 times), bring your eyes close to the eyepiece, and slowly rotate the body focus wheel until you can see the enlarged object clearly. If the light sensitivity is insufficient, you can turn on the light switch to make the image more uniform.
Key Observation: Insert the microscope into the central specimen holder positioning hole, insert the specimen card into the specimen holder positioning clamp, and adjust to the appropriate magnification to make more stable key observations.
Equipped with microscopic and magnifying functions, direct illumination from a source, detachable central specimen holder, portable and dual-use with a tabletop, widely used in professional tools for biological specimens, minerals and jewelry, textile plate making, precision parts, and horticulture.
 
Please read the instructions carefully before use!