Shaking Incubator (Stack Type) has a temperature range from 4 °C to 60 °C and its rotating speed is from 50 to 300 rpm. The vibrating range of the device is φ 25 mm. It stand with a maximum capacity of 2000 ml × 12 or 1000 ml × 18 or 500 ml × 35 or 250 ml × 40 with a temperature accuracy of ± 0.1 °C. The device uses microprocessor PID control system for smooth functioning. Additionally it has an automatic alarm system for over-temperature, over-speed and for over-current to protect the device.