Helmer i.Series laboratory refrigerators and freezers feature the i.Center Integrated Monitoring System. This system offers automatic alarm testing, an event log with alarm dates and times, and password protected configuration for advanced security and monitoring. The refrigerators and freezers feature bacteria-resistant powder coated interiors and exteriors and are equipped with a programmable electric refrigeration system defrost. Defrost cycles can be set to begin at a specific time, allowing them to run automatically during low use periods. Sure-Seal self-closing doors are incorporated; a recessed floor contains spills. Both single and double door models are offered, with capacities ranging from 20.2 to 56 cu/ft.