Determine the melting point of the substance. It is mainly used for the determination of crystalline organic compounds such as drugs, chemicals, textiles, dyes, perfumes, etc., and microscope observation. It can be determined by capillary method or slide-cover glass method (hot stage method). The main technical parameters: Melting point measurement range: room temperature to 320°C Measurement repeatability: ±1℃ (when <200℃) ±2°C (at 20.0°C to 320°C) Minimum temperature display: 0.1℃ Melting point observation method Monocular microscope Optical magnification 40×