The Eppendorf SmartExtender offers the most comfortable incubator Easily used as an add-on to existing Eppendorf SmartBlocks and Eppendorf ThermoMixer C/Fx and Eppendorf ThermoStat C. * Multi can heat up to 12 containers (1.5mL) to achieve higher flux and greater flexibility in your lab. * Two temperature independent heating function can be used simultaneously Eppendorf SmartBlock and SmartExtender. The center's Eppendorf SmartBlock can still be used for heating, cooling and mixing.