Scope The instrument conforms to the SH/T0090-91 and ASTM D1177 standards, the method is suitable for determine the freezing point of high boiling point and low boiling point engine coolant and concentrated liquid. Features 1, this instrument uses the liquid crystal display, Chinese operation interface 2, this instrument adopts the single chip microcomputer automatic control, the experiment process need not be controlled manually 3, the instrument can detect the changes of various parameters, automatic detection results 4, the instrument has the function of self-diagnosis, prompt operation Technical Parameters 1, Power: AC220V ±% 10 50Hz 2, temperature range: -70 â?? ~ room temperature 3, temperature accuracy: 0.1 â?? 4, heating power: 800W 5, cooling power: 1000W