Holland Green Science Preseva Plus Low Temperature Freezer

Holland Green Science Preseva Plus | Low Temperature Freezer

Need reliable low temperature storage for material preservation, extract storage, and laboratory samples with precise temperature control and comprehensive monitoring?

The Holland Green Science Preseva Plus delivers professional-grade low temperature freezing with precise temperature control from -10°C to -25°C and advanced alarm systems.

Perfect for laboratories, research facilities, and processing operations requiring reliable frozen storage with easy access, contamination prevention, and sample protection.

This 322L capacity freezer features a 304 stainless steel interior chamber with 21 adjustable shelves across 5 levels and 5 independent inner doors to minimize cold air loss. The system maintains uniform temperatures with ≤4°C temperature uniformity and 0.1°C resolution monitoring.

Built for continuous operation with ETL and CE certifications, the Preseva Plus includes 80mm polyurethane foam insulation, rechargeable backup battery, and comprehensive alarm systems including power failure logging and safe mode for sample protection during sensor failures.

Constructed with powder-coated galvanized steel exterior for durability and equipped with castor wheels for easy relocation, this freezer ensures reliable performance for demanding storage applications where temperature precision and sample integrity are critical.

Product Highlights

-10°C to -25°C temperature range with 0.1°C resolution and ≤4°C uniformity
304 stainless steel interior with 21 adjustable shelves for optimal organization
5 independent inner doors minimize cold air loss and improve efficiency
Comprehensive alarm systems with backup battery and power failure logging
322L capacity with easy-clean design and castor wheels for mobility

Holland Green Science Preseva Plus Features

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Precise Temperature Control

-10°C to -25°C range with 0.1°C resolution and ≤4°C uniformity

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304 Stainless Steel Interior

Easy-clean chamber with 21 adjustable shelves across 5 levels

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Independent Inner Doors

5 separate doors minimize cold air loss and improve efficiency

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Advanced Alarm Systems

Multiple alarms with backup battery and power failure logging

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Superior Insulation

80mm polyurethane foam insulation minimizes temperature loss

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Secure Storage

Mechanical lock with magnetic door seals for optimal security

Holland Green Science Preseva Plus Specifications

Specification	Value
HGS SKU Number	10308006
Power Specification	120V 60Hz 1ph – 280W
Temperature Control Range	-10°C to -25°C
Temperature Resolution	0.1°C
Temperature Uniformity	≤4°C
Nominal Capacity	322L
Exterior Dimensions (W×D×H)	673×676×1886mm
Interior Dimensions (W×D×H)	508×455×1393mm
Shelves	21 adjustable stainless steel shelves
Inner Doors	5 independent doors
Refrigerant Type	R290
Weight	113kg

Holland Green Science Preseva Plus Alarm Systems

The Preseva Plus features comprehensive monitoring and alarm systems to protect valuable samples and ensure operational reliability:

Power Failure Alarm: Alerts and logs power outages with backup battery operation
Temperature Sensor Failure Alarm: Detects sensor malfunctions with safe mode protection
High/Low Temperature Alarm: Monitors temperature deviations outside set parameters
Door Open Alarm: Warns when doors remain open beyond safe time limits
Overtemperature Alarm: ETL-certified safety system prevents temperature excursions
Rechargeable Backup Battery: Maintains display and logging during power interruptions

The digital controller displays real-time temperature, alarm status, and system information while maintaining detailed logs for compliance and troubleshooting purposes.

Holland Green Science Preseva Plus Freezer Manual

Holland Green Science Preseva Plus Warranty

Holland Green Science warrants the Preseva Plus to operate substantially in conformance with published specifications and be free from defects in material and workmanship when subjected to normal, proper, and intended usage by properly trained personnel.

The warranty period is one (1) year from the date of purchase for equipment. During the warranty period, Holland Green Science will repair or replace defective products at the company's option, provided the buyer promptly notifies the company in writing upon discovery of any defect.

Holland Green Science Preseva Plus FAQs

What temperature range is optimal for different storage applications? +

The Preseva Plus operates from -10°C to -25°C with 0.1°C resolution control. Fresh material freezing is typically done at -18°C to -22°C, while longer-term extract storage benefits from the lower -25°C setting. The precise control ensures optimal preservation conditions for different sample types.

How do the independent inner doors improve efficiency? +

The 5 independent inner doors allow access to specific sections without exposing the entire chamber to ambient temperature. This minimizes cold air loss, reduces energy consumption, and maintains stable temperatures in unused sections. Each door corresponds to different shelf levels for organized sample access.

What maintenance is required for optimal performance? +

Regular maintenance includes cleaning the 304 stainless steel interior and adjustable shelves, checking door seals, and ensuring proper ventilation around the unit. The R290 refrigerant system requires minimal maintenance. Castor wheels allow easy movement for cleaning around the unit without disconnecting power.

How does the backup battery system work during power outages? +

The rechargeable backup battery maintains the digital display and alarm systems during power outages, logging critical information including temperature data and power failure duration. While the cooling system requires mains power, the excellent 80mm polyurethane insulation maintains low temperatures for extended periods during brief outages.

What alarm systems protect my stored samples? +

The Preseva Plus includes comprehensive protection systems:

Temperature alarms for high/low temperature deviations
Door open alarm prevents accidental temperature loss
Power failure logging with backup battery operation
Sensor failure protection with safe mode operation
ETL-certified overtemperature alarm for safety compliance

How much storage capacity does this freezer provide? +

The Preseva Plus offers 322L nominal capacity with 21 adjustable stainless steel shelves arranged across 5 levels. The interior dimensions are 508×455×1393mm, providing flexible storage configurations for various sample sizes and containers while maintaining optimal air circulation.

What security features prevent unauthorized access? +

The unit includes a mechanical lock for secure sample storage and magnetic door seals that ensure optimal sealing while providing clear indication of proper closure. The digital controller can display access information, and the robust construction with powder-coated exterior provides additional security for valuable samples.

Is this freezer suitable for laboratory compliance requirements? +

Yes, the Preseva Plus meets laboratory standards with ETL and CE certifications, detailed temperature logging, alarm documentation, and ≤4°C temperature uniformity throughout the chamber. The 0.1°C resolution monitoring and comprehensive alarm systems support compliance with quality assurance and regulatory requirements for sample storage.

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Holland Green Science Preseva Plus Freezer