So-Low | Explosion-Proof Ultra Low Chest Freezers (-85°C)

So-Low | Explosion-Proof Ultra-Low Temperature Chest Freezers to -85°C for Laboratory Cold Storage

At Alto Med Supply, we offer the So-Low C85-X Series explosion-proof ultra-low temperature chest freezers, engineered for safe and reliable cold storage in hazardous laboratory environments.

These specialized freezers are designed to store sensitive materials at temperatures as low as -85°C, while preventing the ignition of external flammable vapors or gases.

Their explosion-proof design makes them ideal for laboratories, research facilities, chemical processing areas, and other locations where volatile substances may be present.

The C85-X series operates within a -40°C to -85°C temperature range and uses a high-efficiency cascade refrigeration system with hermetic compressors and CFC- and HCFC-free refrigerants for dependable ultra-low temperature performance.

Durable construction includes a 16-gauge powder-coated steel exterior, a 14-gauge galvanized steel interior, and high-density polyurethane insulation to help maintain stable temperatures while protecting stored materials.

For monitoring and control, these freezers feature explosion-proof digital controls with a dual temperature display, allowing users to easily view both the setpoint and the actual internal temperature.

A battery-operated alarm system with audible and visual alerts provides added protection by notifying users of power or mechanical issues.

The top-opening lid includes padlock provisions for secure access, and the system uses manual defrost with gravity-flow air circulation for reliable operation.

Designed for compliance in hazardous locations, So-Low explosion-proof freezers are typically hardwired for safety and are available in 115V, 208V, or 230V configurations.

Each unit is UL listed for hazardous environments.

To further reduce ignition risks, these freezers are built without internal lights or standard electrical outlets, ensuring safe operation in volatile laboratory conditions.

Key Features

• Explosion-Proof Design: Built for hazardous laboratory environments to help prevent ignition of flammable vapors or gases.
• -40°C to -85°C Ultra-Low Temperature Range: Provides reliable cold storage for sensitive laboratory and research materials.
• Cascade Refrigeration System: High-efficiency hermetic compressors use CFC- and HCFC-free refrigerants for dependable ultra-low temperature performance.
• Durable Steel Construction: 16-gauge powder-coated steel exterior and 14-gauge galvanized steel interior for long-lasting durability.
• High-Density Insulation: Polyurethane foam insulation helps maintain stable temperatures and energy efficiency.
• Digital Temperature Monitoring: Dual digital display shows both the set temperature and the actual internal temperature.
• Audible & Visual Alarm System: Battery-powered alarms alert users to power failures or mechanical issues.
• Lockable Top Lid: Secure chest-style lid includes padlock provisions to help protect stored materials.
• Manual Defrost System: Gravity-flow air circulation with manual defrost for consistent freezer performance.
• Hardwired Electrical Connection: Designed for safe installation in hazardous locations with 115V, 208V, or 230V options.
• UL Listed for Hazardous Locations: Certified to meet safety standards for explosion-proof laboratory equipment.
• Spark-Safe Interior Design: Built without internal lights or standard outlets to reduce ignition risk in volatile environments.

Specifications

Product Manual

User manual for So-Low Explosion-Proof ULT Chest Freezers (-85°C) can be found here.

Shipping

• Free curbside delivery (Contiguous United States Only)
• Delivery ETA 5–10 business days
• We also offer white glove engineer delivery with commissioning if required. Please contact us for a quote.
• If you require faster shipping or shipping anywhere other than the contiguous United States, please contact us for a shipping quote.

Warranty

This product comes with a 1-year manufacturer's parts and labor warranty on the unit and a 1-year warranty on the compressor.

Important Notes

The warranty applies only to the original purchaser of a new product.

It does not cover:

• Normal wear and tear
• Damage due to misuse, alteration, tampering, negligence, accidents, lack of maintenance, unauthorized repair, or any other cause beyond the reasonable control of the manufacturer.

If you have any faults with your items, contact us and we will help resolve any issues.

Conditions: Warranty is void if the product is altered, misused, or repaired by unauthorized personnel. Damage from improper maintenance or unsuitable environmental conditions is also excluded.

Important: Product Inspection Upon Delivery

Please inspect all items carefully for any damage that may have occurred during shipping immediately after unpacking and report within 24 hours of receiving the product.

Returns

We at Alto Med Supply are committed to ensuring you are delighted with every purchase. However, if you need to make a return, please reach out to us at support@altomedsupply.com, and we will guide you through the return process.

Here are a few important points to note:

• You have the right to return your order within 14 calendar days of receiving the goods. Beyond this period, returns cannot be accepted.
• Products must be returned unused and in their original packaging.
• Return shipping charges and a 25% restocking fee apply.
• Bespoke items cannot be returned unless damaged or faulty.

For more information, please refer to our Terms and Conditions.

Please view our full returns and refund policy here.