Operating features   • 5°C to 40°C at room temperature 25°C   • Microprocess PID control/ Auto-tuning/ Calibration   • Digital timer: 1 min to 99 hr 59 min, delayed ON/ OFF   • Over-temperature limiter   • 3 different temperature values memorable without auto-tuning   • 9 steps of temperature profiles programmable and repeat up to 200 cycles   • Adjustable fan speed within 3 steps and defrosting time/ period control   • Digital LED display (0.1°C resolution) with touch-sensitive keypads   • RS-232 interface available   Constructional features   • Tempered inner glass doors are equipped for all models! (14L/ 48L)   • Maximum 2 X 1000mL Erlenmeyer flasks can be stored in the smallest chamber (14L)   • Environment-friendly insulation material-EPDM used for safe and convenient operating (ASTM-C534)   • Space-saving compact size on bench-top and can simply be stacked up as dual chambers