Dual-System Ultra-Low Temperature Freezer MDF-86V408D, 588 L (CAT#: STEM-AL2-6938-ZJF)

The Dual-System Ultra-Low Temperature Freezer MDF-86V408D is designed for secure long-term storage of critical biological samples. Two independent refrigeration systems are specified so cooling can continue if one system becomes unavailable. The specification table gives a capacity of 588 L and an operating range of -40°C to -86°C. The source description states a 13.3-inch HD touch screen, while the specification table lists a 7-inch LCD touch screen, and this discrepancy is preserved. PURF and VIP insulation are specified together with a stainless-steel interior. The cabinet accommodates 400 two-inch boxes or 40,000 samples in 2 mL vials. A comprehensive alarm system includes a 72-hour power-failure alarm backup. USB, RS232/485, and RS485 connectivity are listed together with optional recording, CO2 backup, and LN2 backup accessories.

Temperature Range: -40°C to -86°C
Capacity: 588 L / 20.76 cu.ft
Cooling Method: Direct cooling
Refrigeration System: Dual independent system
Refrigerant: R4001 mixed gas
Controller: Microprocessor
Sensor: PTC
Display Discrepancy: Description states 13.3-inch HD LCD touch screen
specification table states 7-inch LCD touch screen
Compressors: SECOP, 2
Access Ports: 2 × 25 mm
Insulation: PURF + VIP
Inner Doors: Foamed stainless steel, 2
Racks: 16 (5 × 5)
2-inch Boxes: 400
2 mL Sample Capacity: 40,000
Alarm Backup: 72 h
Voltage/Frequency: 220 V 50/60 Hz
Power: 1500 W
Current: 10.47 A
Power Consumption: 16.23 Wh/24 h (source value)
Noise: 53 dB
Exterior Dimensions: 891 × 1155 × 1994.5 mm
Interior Dimensions: 606 × 738 × 1310 mm
Package Dimensions: 975 × 1190 × 2200 mm
Net/Gross Weight: 303/332 kg
Shipping Volume: 2.55 CBM
Remote Alarm: RS232/485
RS485 Port: Yes
Optional Accessories: Chart recorder, data logger, CO2 backup system, LN2 backup system, gloves

Dual independent cooling systems
588 L specified capacity
PURF and VIP insulation
Stainless-steel interior
40,000-sample capacity for 2 mL vials
72-hour alarm backup
USB and serial connectivity
Comprehensive alarm monitoring