ABS exterior cabinet with a platform for heating and shaking up to four 96-well microtiter plates. The top lid is lined with a treated aluminum plate interior and features a simultaneous heating system for the main platform. Digital display of current and setpoint temperature, time, and stirring speed. Audible and visual alarms at the end of the cycle and in the event of a malfunction in the programmed temperature and/or time. An integrated motor produces uniform motion at the programmed speed and is protected against overload with automatic shutdown and activation. A temperature calibrator is included to meet user needs. An overtemperature protection device provides safety and reliability.