The So-Low U40-18 is an upright, low-temperature freezer engineered for laboratory, medical, and industrial applications requiring precise temperature control to -40°C. This 18 cubic foot (505 liter) unit delivers stable sample preservation with a single-stage, HCFC and CFC-free refrigeration system and gravity flow cooling. The microprocessor-based digital controller provides dual temperature displays monitoring both setpoint and actual chamber temperature, while comprehensive alarm coverage includes audible and visual signals for over/under temperature, power failure, and low battery conditions. An alarm system battery backup ensures notification capability during power loss. The robust construction features a 14-gauge zinc-coated galvanized steel chamber, 16-gauge powder-coated steel exterior, and high-density polyurethane insulation. Interior configuration includes four adjustable shelves plus one base shelf with five stainless steel inner doors, accommodating 20 inventory/drawer racks. A single front-opening lockable door and four lockable casters enable secure operation and mobility.
Technical Specifications
• Capacity: 18 cubic feet (505 liters)
• Temperature Range: 0°C to -40°C (32°F to -40°F)
• Refrigeration: Single-stage hermetic compressor system; HCFC and CFC-free refrigerants
• Chamber Construction: 14-gauge zinc-coated galvanized steel
• Exterior: 16-gauge steel, powder-coated cool gray finish
• Insulation: High-density polyurethane foam
• Air Circulation: Gravity flow cooling
• Interior Dimensions: 23″ × 26″ × 51.25″ (58 cm × 66 cm × 130 cm)
• Exterior Dimensions: 36″ × 36″ × 79.5″ (91 cm × 91 cm × 201 cm)
• Defrost: Manual
– Key Features
• Microprocessor digital controller with dual temperature displays
• Audible and visual alarms for mechanical/electrical failure, over/under temperature, and power failure
• Low battery alarm with alarm silencing and battery test switches
• Dry contact relay for remote alarm hookup
• Battery backup for alarm system only
• Automatic restart timer following power restoration
• ETL listed (UL 61010-1, CSA C22.2 No. 51010-1)
• Four adjustable shelves plus base shelf; five stainless steel inner doors
• Lockable front door with padlock provision; four lockable casters
– Electrical Specifications
• Available Voltages: 115 V / 60 Hz / 1 phase (NEMA 5-20); 208 V / 60 Hz / 1 phase (NEMA 6-20); 230 V / 60 Hz / 1 phase (NEMA 6-20); other voltages upon request
• Configuration: Hardwired
– Typical Applications
Laboratory sample storage, medical specimen preservation, and industrial low-temperature applications requiring reliable long-term stability and alarm monitoring.
