The instrument basically consists of a miniature furnace with Auto controlled heating rate arrangement, an air circulating arrangement and Digital temp. Indication with necessary controls. When the “Start” key is pressed, heating starts. There is Auto detection of Opto-coupled light transmission system , When sample melts , photodiode detects the signal and Melting Temperature put on hold / latched on display automatically. The furnace becomes off and the cooling fan ON simultaneously. The instrument gives audio & visual indications. The Melting Temp. of the sample remain displayed on the panel till the “RESET” switch is operated.