VWR Free Standing Counter Top Freezer 1.3 CF Auto Defrost No Lock. These freezers use Environmentally friendly natural hydrocarbon refrigerants which reduce global warming potential (no CFCs). The digital microprocessor precisely controls the temperature making these freezers perfect for critical samples and reagents. All Freestanding models require 4 of clearance around the back and sides of the unit for proper ventilation. Improper installation will void the warranty and will lead to temperature maintenance issues overheating and possible failure. Manual defrost may be preferred for critical samples because auto defrost freezers incorporate an electric heater installed on the evaporator that assist in the removal of the frost and ice. Although the heater helps speed up the frost and ice removal it can raise the temperatures within the freezer. These air temperature spikes can be harmful to some medical and laboratory products. Specifications for VWR Free Standing Counter Top Freezer: Manufacturer: VWR Operation Temperature Range: -15 - -25 Celsius Additional Features: 2 shelves Lock Type: Non-Locking Features of VWR Free Standing Counter Top Freezer: Monitoring and alarms High/low temperature alarm Sensor error alarm Alarm mute Remote contacts for system alarms Exterior: 23.75W x 24D x 20.38H inches Weight: 106lbs Refrigerant: R600a Power: 120V 60Hz 0.9A 1/8 hp Package Contents: VWR Free Standing Counter Top Freezer VWR 10819-664: Free Standing Counter Top Freezer 1.3 CF Auto Defrost No Lock