Multi-chamber incubator LB-20MCI is equipped with forced convection system for a uniform temperature distribution, heat exchange and gentle air flow in chamber. Separate microprocessor PID auto-tuning controller controls four chambers individually and variables like temperature, speed and flow. Safety tempered glass inner door prevents heat loss and provide clear sample visualization. Safety devices include ELB ( elastic load balancing ) and self-diagnosis functions such as memory error, overheating, SSR and sensor short circuit for end user safety.