So-Low Platinum Series Low Temperature Upright Freezers

Category Upright Lab Freezers
Manufacturer So-Low
Country of manufacture the United States of America

The Platinum Series comes with an advanced PID control system. With a 4.3" color touch screen operating interface with embedded SCADA (supervisory control and data acquisition) and LAN features. Upright style Low Temperature Freezers are designed for a variety of uses. Freezer Sizes range from 13 to 30 cubic feet capacities.

Manufactured in Cincinnati Ohio, So-Low's Low Temperature Freezers to -40°C are produced with high quality craftsmanship, heavy-duty materials, and over 50 years of experience. These freezers use a hermetic motor compressor refrigeration system, providing durable and reliable environmental conditions for your product’s vital temperature requirements. So-Low Low Temperature Freezers are available in wide variety of sizes and styles, to accommodate for each customer required conditions. Combined with our nation-wide service network, our Low Temperature Freezers have various options for additional temperature recording devices, providing the highest level of quality temperature management and transcription.

So-Low's Superior Construction

Laboratory freezers have a 16-ga. exterior (cold rolled steel). Interiors are 14 gauge vs. competitions 16 gauge. Uprights have adjustable shelves. Laboratory freezer interiors are galvanized, non-corrosive steel. Galvanized steel conducts temperature more efficiently than stainless steel. This creates less stress on compressors making them run cooler and longer.

So-Low's Digital Control

So-Low is the only Ultra-Low temperature manufacturer to utilize a dual display digital temperature control. A red LED display indicates the actual interior chamber temperature while a green LED display located directly below the red display shows the actual setpoint temperature. This will give assurance that the freezer is operating at the correct temperature range whereas other manufacturer's temperature controls show only the actual temperature and not both the setpoint and actual temperature.

So-Low's Dependability

Laboratory professionals all over the world have recognized the dependability and efficiency of So-Low Laboratory Freezers, the first to combine all of these performance features and deliver a level of quality construction, reliability and value unequaled anywhere in the world.

Performance testing is your assurance of So-Low Laboratory freezers' dependability. Every freezer is fully tested under the most demanding conditions for seven days. The constant ultra-low setpoint operating temperature is assured in warm temperature environments. Dependability is backed up by a 12 month warranty. Technical assistance is provided by a Nation-Wide-Network of service companies.

Please note: So-Low refrigerators and freezers are manufactured at the time the order is placed and go through extensive testing before they are released. A 2-3 week lead time should be expected.

Some of the accessories/options available for this product are factory installed and must be purchased at the same time your So-Low freezer / refrigerator is ordered. Please add them to your cart with your freezer / refrigerator before checkout so that they may be included with the submission of your order to the manufacturer for installation during production. 

Key Attributes 
Min. Temperature 0°C to -40°C
Cubic Feet 13, 18, 22, 25
Alarms Yes
Controls Digital
Defrost Manual
Electrical 115/60/1 - 208/60/1 - 230/60/1
Warranty (years) 1
Weight (lb) Unavailable
Width (in) 36 to 50
Depth (in) 36.25
Height (in) 79.5


Manufacturer Specifications 
. PN40-13 PN40-18 PN40-22 PN40-25

Temp Range:

0°C to -40°C


13 Cu ft / 370L

18 Cu Ft / 505L

22 Cu ft / 626L

25 Cu ft / 710L


4 Adjustable Shelves (5 Compartments)

Rack Capacity:





w x d x h

36'' x 33.5'' x 79.5''

37'' x 36.25'' x 79.5''

42'' x 36.25'' x 79.25''

50'' x 36.25'' x 79.5''

w x d x h

20'' x 22'' x 51.25''

23'' x 26'' x 51.25''

28.5'' x 26'' x 51.25''

34'' x 25'' x 51.25''

Temp Control Touch Screen control, Displays set point and chamber temperature, Hi/Low Alarm W/ Email and SMS notification, Alarm Relay Dry Contacts, Power Failure Dry Contacts, Battery Back-up, Viewable Temperature graph, Data logging downloadable via USB or FTP, Multi-Level Security, VNC Remote Access via PC / smart devices
Alarm System Battery operated alarm system will emit an audible and visual signal when there is a mechanical or electrical failure. The alarm has an over and under temperature setting, alarm silencing feature. 
Remote Alarm Relay A relay for a remote alarm hook-up is also provided. 
Access Port Mounted in left hand side of the cabinet will be a 1/2" porthole leading into the chilling chamber, complete with plugs.
Refrigeration System One hermetic motor compressor.  The compressor is the heavy duty industrial type: air cooled.  The motor is sealed in oil for life and has thermoguard overload protection.
Construction Chamber is 14-ga. zinc coated galvanized steel. Exterior is 16-ga. steel. Powder coated cool gray finish.
Voltages Available 115/60/1 - 208/60/1 - 230/60/1 - 220/50/1
Technical Support Supplied by Nation-Wide-Network of service companies.
ETL Electrical Approval

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So-Low Platinum Series Low Temperature Upright Freezers Accessories