Range: 5`C above ambient to 300`C Inside: Steel or mild steel Control:Electronic Temp.Indicator Controller or Hydraulic Thremostat. Electrically heated. Forced & closed air circulation with motor. Sizes: 35x35 cm 2 trays 45x45x45 3 trays 60x60x60 cm 4 trays 60x60x90 cm 5 trays. Trays Dryers:(Electrically heated) 12 tryas : 24 trays : 48 trays : 96 trays Tray Size : 800x400x30 mm(MS,SS or Aluminium)