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Item powers on and passed basic function testing. Unit has slight cosmetic damage. See attached pictures for more details.The Thermo Scientific CO2 Gas Guard, Model 3050monitors and regulates a CO2 or N2 gas supply supplied by 2 tanks. When one tank is exhausted, the 3050 will start an audible alarm, and switch the gas supply from the empty primary tank to the secondary tank. It has two 15 PSI regulated inlets.Manufacturer SpecificationGas Connections:Inlet - two 1/4 barb fittings;Outlet - one 1/4 barb fittingsInlet Pressure: 15 PSIGConstruction: 18 Ga. CRS, Heavy-gauge metal with powder coated finishEnvironmental Conditions:Ambient Conditions: 5C to 40CRelative Humidity: 80% up to 31C, then decreasing linearly to 50% to 40CAltitude: Up to 2000 Meters above sea levelAdditional Prep Fees May Apply