Backup System
Backup System
![HBX-IIA](https://haiermedical-en.oss-cn-hongkong.aliyuncs.com/upload/images/product/thumb/20211206/0ec790da89cb13a93d81e90004bfbd4fcf55c356.png)
LN2 Backup System
Features:
Interlocked design to turn off the LN2 injection when the door is opened
Protection circuit to prevent over-charging battery
Light weight and portable design, suitable for installation on top of a freezer
Alarm functions to include low battery and sensor error
![CO2 Backup System](https://haiermedical-en.oss-cn-hongkong.aliyuncs.com/upload/images/product/thumb/20211203/1b0739994c032976e180d0fefd313a469c28ac8a.jpg)
CO2 Backup System
Features:
Provides back-up in event of ULT failure to control cabinet temperature
User adjustable temperature setting and low CO2 level alerts
Small footprint, top mounted design
Suitable for almost all types of ULT freezer