Performance -Temperature range from ambient +3? to 60?. -Microprocessor PID control / Temperature calibration / Automatic tuning. -Vibration-free design ideal for yeast cultivation. - Free from noise, vibration, and mechanical troubles by film type heating method. Convenience -Intuitive control panel with bright LED display. (0.1℃resolution) -Dual wait on/off timer modes. (1 min. to 99 hr. 59 min.) -Convenient preset function for 3 most commonly used temperature settings. -Convenient sample monitoring without affecting chamber temperature via the inner tempered-glass door. -Rounded inner chamber corners for easy cleaning and optimal airflow. -Stackable up to 2 units using the optional stacking kit. (optional) Safety -Automatic run after power interruption. -Keypad lock function prevents accidental changes during operation. -Over-temperature and over-current protection. -Audible and visible open door alarms.