forced-air cooling, electrically heated balancing and microprocessor controlling system ensure a constant temperature within 4±1 deg C. These products come with a digital display for showing average temperature, upper and lower set points with a resolution of 0.1 for observation and monitoring.  Adjustable temperature set points within 2~8 deg C With an increment of 0.1 deg C. Using five digital integrated sensors to display and control.           Temperature recorder to monitor safety system whole course.