Model OV-9023A OV-9053A OV-9073A OV-9123A Working size mm 300×300×275 415×375×345 450×350×450 550×370×520 Power 500W 1000W 1200W 1500W Power supply 220V 50Hz / 110V 60Hz Temp. range RT+10-25C RT+10-25C RT+10-250C RT+10-250C Temp. resolution 0.1C 0.1C 0.1C 0.1C Temp. fluctuation ±1C ±1C ±1C ±1C Package size cm 60×53×73 74×60×79 76×57×91 78×77×98 G .W. kg 36 53 61 78 N.W. kg 28 40 46 57 Unit price RMB 2730.00 3390.00 3750.00 5100.00 With stealth door locks, silent fan, with a mechanical over-temperature protection, with leakage