The Hottop B2K+ Coffee Roaster is a top-of-the-line machine that offers a variety of features and safety features that other coffee roasters can't compete with. With its updated control panel, the Hottop B2K+ gives users complete control over their coffee roasting experience. Whether you're a beginner or a seasoned pro, the Hottop B2K+ is the perfect coffee roaster for you. Features: 1. You can now set the timer to count up or down, depending on your needs! 2. As the bean temperature rises, the colour begins to change, reaching a brown tone right around the time of first crack. This provides an easy way to monitor the process and ensure that your coffee beans are roasted to perfection. 3. Now, you can see the environmental temperature as well! With our newly designed K thermocouples, we have placed the bean thermocouple in the bean mass for greater accuracy and more consistent results. 4. The temperature of the bean is now used to set the target temperature (maximum temperature that can be set by the user) and is displayed separately. 5. There are now four knobs to adjust settings. Rotate clockwise to increase a setting, and counter-clockwise to lower. These knobs are speed sensitive and have infinite rotation. There are no more buttons to push or parameters to select before adjusting! The time and temp (the two top knobs) set the maximum targets for the roast, while the Heat and Fan knobs (bottom two) are dedicated to those functions. Temp can be adjusted in 1% increments and fan speed in 10% increments. All settings are available at any time throughout the roast. 6. As of 5/15/15, the KN-8828B-2K+ is available with a USB port located on the side of the control panel! 7. The speed of the fan and the power of the heating element are both displayed constantly. This coffee roaster is designed with your convenience in mind. The eject button has been moved away from other features to help avoid accidental ejection. The control system has been designed around a new, higher-output heating element. Our testing shows that this model is very easily capable of dark roasts that so many enjoy. The setting knobs are the infinite rotation style control and the speed at which you turn them controls the rate of change of the parameter. The display is easy to read and has a very wide angle of view from the sides as well as from above. Warranty The product has 12 months parts warranty against manufacturing defects Technical SpecificationsBatch size: 250-300gTemperature range: 80-220 oCAvailable roast time range: 8-25 minutesIn-roast controls: Start, Stop, Time up/down, Fan speed up/down, Heater power up/downRoast memory locations: 3Dimensions (cm): 48 x 25 x 35 (wxdxh)Weight: 10.5kg Brand Hottop Shipping Weight 11.0000kg Shipping Width 0.560m Shipping Height 0.420m Shipping Length 0.320m Shipping Cubic 0.075264000m3 Country of origin Taiwan