◆Microprocessor control, the imported compressor with refrigeration ◆Operation by touch through front plate, digital display. ◆The function of electronic lock door, over-speed, over-temperature for safe operation with short acceleration and deceleration. TECHNICAL PARAMETER: ◆Model:H2050R ◆Max speed: 20500r/min ◆Max RCF: 29200譯 ◆Max capacity: 4?00ml ◆Speed accuracy: ?0r/min ◆Temperature range:-20℃～40℃ ◆Temperature accuracy: ?.5℃ ◆Time range: 0～99min ◆Noise: <65dB (A) ◆Motor: Frequency conversion motor ◆Power supply: Ac220V 50Hz 18A ◆Dimension: 520?20?20(mm) ◆Weight: 95kg