A melting-point apparatus is a scientific instrument used to determine the melting point of a substance. Some types of melting-point apparatuses include the Thiele tube, Fisher-Johns apparatus, Gallen Kamp (Electronic) melting-point apparatus and automatic melting-point apparatus.

While the outward designs of apparatuses can vary greatly, most apparatuses use a sample loaded into a sealed capillary (melting-point capillary), which is then placed in the apparatus. The sample is then heated, either by a heating block or an oil bath, or as the temperature increases, the sample is observed to determine when the phase change from solid to liquid occurs. The operator of the apparatus records the temperature range starting with the initial phase-change temperature and ending with the completed phase-change temperature. The temperature range that is determined can then be averaged to gain the melting point of the sample being examined.

Apparatuses usually have a control panel that allows the starting and final temperatures, as well as the temperature gradient (in units per minute), to be programmed. Some machines have several channels, which permit more than one sample to be tested at a time. The control panel might have buttons that allow the start and end of the melting point range to be recorded.

TTMPI series are Video Melting Point Apparatus, while TTMPII are Automatic Video Melting Point Apparatus.

TTMP series perfectly integrates video technology into melting point measuring. It not only provides users with reliable melting point test result, but also intuitively displays temperature curve and real-time video image, and achieves the function of save, reply the video, stamp video and so on. It also provides better help for users to observe melting process of sample.