-40°C Upright Freezer 528 L, Dual Chamber Low Temperature Lab Freezer, -20 to -40°C

The Master Science -40°C Upright Freezer provides 528 L of storage at -20 to -40°C for biological samples, reagents and other materials that need deep-cold conditions. One refrigeration unit controls the upper and lower chambers independently, and each chamber has its own inner door to limit cold loss when the outer door opens.

A microprocessor controller with an LED digital display sets temperature in 0.1-1°C steps, while multiple alarms, a USB port, a remote alarm port and lockable casters support safe daily use.

Technical Specifications

Specifications of the -40°C Upright Freezer:

• Brand: Master Science
• Model Number: MSLF40-530SWISS
• SKU: MSLF40-530SWISS
• Capacity: 528 L (18.64 cu.ft)
• Temperature Range: -20 to -40°C (at ambient 10-32°C)
• Internal Dimensions (W x D x H): 651 x 631.5 x 635 mm x 2 chambers
• External Dimensions (W x D x H): 900 x 818 x 1875 mm
• Sensor: NTC
• Controller: Microprocessor
• Refrigerant: R290 (CFC-free)
• Defrost: Manual
• Compressors: 2
• Display: Digital display
• Alarms: High/low temperature, high ambient temperature, sensor error
• Power Failure Alarm Backup: 8 h
• Interior / Exterior Material: Powder-coated steel
• USB Port / Casters / Remote Alarm Port: Standard
• Test Holes: 2 x 25 mm
• Shelves / Drawers: 4 shelves, 18 drawers
• Noise: 55 dB
• Power Supply: AC 110/220 V ±10%, 50/60 Hz
• Power Consumption: 452 W
• Net / Gross Weight: 192 / 212 kg
• Package Dimensions (W x D x H): 980 x 930 x 2020 mm

Key Benefits

• Two zones in one cabinet: Upper and lower chambers are controlled independently from one refrigeration unit.
• Stable temperature: Independent inner doors reduce cold loss and keep conditions steady.
• Clear sample organisation: 4 shelves and 18 drawers make it easy to sort and find samples.
• Protects your samples: Audible and visual alarms warn of temperature, sensor and power problems.

For storage at -25°C, see our -25°C Biomedical Freezer, 358 L as a companion to the -40°C Upright Freezer.

Product Features

Control

• Microprocessor control, adjustable from -40 to -20°C
• LED digital display with 0.1-1°C setting increments
• Start-delay function protects the unit when power returns after an outage
• Wide voltage tolerance, 187-242 V AC

Refrigeration and Insulation

• Optimised refrigeration layout for cooling effect and temperature uniformity
• CFC-free R290 refrigerant
• High-density CFC-free urethane foam insulation
• Permanently lubricated cooling fan

Safety and Convenience

• Alarms for high/low temperature, sensor error, power failure, controller fault and door ajar
• Audible buzzer and flashing light alarm
• Built-in door lock
• USB port and remote alarm port
• Lockable casters
• Corrosion-resistant interior

Applications

The -40°C Upright Freezer is suitable for:

• Hospital and clinical laboratories
• Research institutes and universities
• Pharmaceutical and biotech laboratories
• Storage of reagents and biological samples at -20 to -40°C

Standard Accessories Included

• 4 shelves
• 18 drawers
• USB port
• Casters
• Remote alarm port

Optional Accessories

• USB data logger / temperature recorder

Common Laboratory Problems and How the -40°C Upright Freezer Helps

How it helps with cold storage challenges:

• Temperature swings when the door opens: Inner doors on each chamber hold the cold in.
• Unnoticed freezer failures: Multiple alarms with sound and light, plus a remote alarm port, alert staff quickly.
• Damage after power cuts: A start-delay function protects the compressors when power returns.
• Disorganised storage: Shelves and 18 drawers keep samples sorted.