This Turbo Air Premier Spec Series PRO-50-4R Half Solid Door Reach-In Refrigerator features a cold air distribution system to keep the cabinet temperature consistent and uniform throughout. The refrigeration system is designed for efficiency to cool faster easier. This PRO-50-4R puts you in complete control, allowing you to adjust the temperature on its high tech monitor. Plus, the monitor alerts you with an alarm should the door remain open for more than 30 seconds and the doors hinges self-close and stay open, ensuring the food remains safe and doesnt go to waste.