NOTE: This model is discontinued. Please call 888-681-3082 for replacement model.
Freestanding CO2 Backup System, Thermo Scientific 7218, inject liquid CO2 into cabinet when cabinet temperature warms to preset level. The system injects liquid LN2 into cabinet when cabinet temperature warms to preset level. The digital display constantly indicates actual cabinet temperature up to -150 C adjustable in 1 C increments. Liquid flow is shut off automatically when freezer door or lid is opened.