This Touch Screen Gradient PCR Machine (VSI-370) is ideal for thermal cycling and protocol optimization in molecular biology, medical, food, genetic testing, etc. TECHNICAL SPECIFICATIONS: Voltage : AC100~240V, 50/60Hz // Temp Control Ways : Block or Tube// Block Temperature Range : 4~99.9°C// Timer : 1s ~ 99min 59sec/Infinite// Block Temperature Accuracy: ±0.2°C// Block Temperature Uniformity: ±0.25°C// Heating Up Rate (average) : 3°C// Cooling down Rate (average) : 2.5°C// Capacity: 96x0.2ml (PCR plate without/semi skirt), 12x8x0.2ml strips, 8x12x0.2ml strips, 0.2ml tubes (height 20~23mm)// Max. Heating Rate : 5°C /S// Max. Cooling Rate: 4..5°C /S// Gradient: Max. 30°C , Accuracy ±0.3°C// Gradient Temperature Accuracy : ±0.3°C// Block Temperature Accuracy : 0.1°C// Heating Lid Temperature Range: RT+30°C ~105°C// Automatically Heating Lid : Shut off automatically when sample lower than 30°C or program over// Timer Increasing/Decreasing : 599~599 S for Long PCR// Temperature Increasing/Decreasing : -9.9~9.9°C for Touch down PCR// Programs Stored : 10000+// Max. Cycles : 99// Max. Steps : 30// Program Pause Function : Yes// 16°C Temperature Holding Function : Infinite// Real-time operation : Image-text displayed// Interface Port : USB 2.0// Dimension (W×D×H) : 200x300x170mm// Weight : 4.5kg