Peace-of-mind with optional ups emergency battery pack. Offered as an option on the Speed-Commander™ 1400 SEL, Clean-Master, Cool-Master, Food-Master and Speed-Master 1600 L doors, our completely unique UPS emergency battery pack provides peace-of-mind in case of a power failure. If power is lost to the door, the UPS emergency battery pack automatically opens the door once to allow personnel to quickly exit the area. This low maintenance option is free of springs, counterbalance systems and other high maintenance parts that are typically required for emergency opening. When the battery is low, an alarm sounds to signal time for a replacement. Replacing the battery is a simple process that takes just a few minutes.