1, anti-interference ability of the outside temperature, the test results stable, accurate and refined. ① compressor refrigeration and special heating device, to achieve a stable outer barrels and other warm environment, temperature accuracy of GB / T 213-2008 7.1.4 Requirements (± 0.1K). ② unique thermal design of the second generation, the main barrel with the outside world and the heat exchange rate is reduced to a minimum. The water level inside the barrel ③ automatic balancing device to ensure that the water in the bucket when the consistency of each experiment. 2, optimized design, the system test results are accurate, true and stable, manually re-count. ① first real test data, reliable, continuous 24-hour test. ② no software correction, all the data real, objective, and to provide data to facilitate the process of re-counted by hand. ③ unique water circulation system to ensure that the temperature difference between the points to reach the national standard temperature (± 0.1 ℃). ④ test speed, a complete test of time ≤13min single specimen. 3, intelligent control, easy to operate and convenient. ① embedded computer systems, anti-interference ability, fast operation. ② main barrel temperature can be set for different temperature requirements. ③ touch screen and keyboard and mouse combination of simple and intuitive, easy to operate. ④ the use of CAN bus control technology to achieve a machine control, testing each other. 4, user-friendly, with powerful data processing, reports, statistics and print functions, you can achieve a variety of groups and manual re-count conversion