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TwinGuard -86˚C Ultra Low Temperature Upright Freezer


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Ultimate Sample Protection

The dual cool lab freezer model MDF-DU302VX-PA offers the highest level of sample protection. The patented dual cooling system maintains normal temperatures as low as -86°C. Should a service event occur, temperatures will hold at -70°C. Combined with conventional facility liquid CO2 backup systems, the two compressor lab freezer creates a double circle of protection around critical specimens.

Superior Temperature Uniformity

Redundant auto-cascade refrigeration systems unique to TwinGuard Series -80 laboratory freezers achieve superior temperature stability during initial startup and maintain uniformity following routine door openings and throughout the steady state.

Efficient Space Management

The slim profile upright freezer is ideal for personal use where shared, remote or off-site storage of critical samples in not desirable. It requires less space than a standard ultra-low temperature freezer, yet holds up to 240 standard 2" storage boxes in only 6.36 sq.ft. (0.6m3) of floor space.

Intelligent Color LCD Display

Easy to read close-up or from a distance, the high contrast color LCD display allows for easy touchscreen use. The display panel includes comprehensive audible and visual warnings, unit diagnostics, running temperature log and predictive analytics. A USB port makes transferring this logged data to a PC convenient. All performance attributes are displayed and an internal time/temperature log is expressed in graphic form.

Microprocessor Controller and Alarms

The TwinGuard upright freezer model MDF-DU302VX-PA is managed by a microprocessor-based controller that combines security, monitoring, predictive performance and data logging functions into a single display with password protected menu screens.

Energy Efficient

TwinGuard Series freezers are designed and constructed for peak performance and reliability while maintaining efficient operating costs. 

EZlatch Ergonomic Design for Quick Access and Positive Door Closure

The patent pending EZlatch is engineered to tolerate frequent door openings, simplify one-handed access and control frost associated with extreme temperature differentials. The EZlatch, one component of the Advanced Frost Control system, is ergonomically designed to ensure comfortable operation. The Advanced Frost Control system in the TwinGuard upright freezer model MDF-DU302VX-PA combines an additional eight components specially engineered to enhance the performance envelope and ensure sample security, temperature integrity and frost control while extending freezer life.

TwinGuard Series 

The PHCbi TwinGuard Series upright and chest freezers for critical samples provide twice the protection for double the peace of mind. Two independent refrigeration systems offer a circle of protection unmatched in the marketplace. Performance down to -86°C is based on integrated complementary refrigeration circuits, robust cabinet design and intuitive smart controls and monitoring. TwinGuard Series long term storage lab freezer are ideal for safe, long term storage of your most high valued products, such as stem cells, embryos, cell lines, rare specimens and other biological materials.

The MDF-DU302VX-PA slim profile upright freezer permits installation in small spaces and all the benefits inherent in the PHCbi TwinGuard Series.