Incubator - I-22LLVL

Percival Scientific designs incubators and environmental chambers with a  variety of features to give you the highest level of functionality and the most versatility.  With many optional features to choose from and vital standard functions within each unit, you can select the ideal incubator with the minimal amount of expense. The I-22LLVL environmental chamber provides dual, vertically stacked compartments with precise controls over each.  You can specify the environment within each and compare samples easily, or monitor separate projects simultaneously.

The I-22LLVL provides a complete solution to environment control in one self-contained unit. Monitor and designate the temperature, humidity, CO2 levels and lighting within each environment through the IntellUsUltra control module. The components within and around the I-22LLVL are built to continually regulate and monitor the environment with no interruptions, eliminating the risk of ice build-up and compressor failure.

See the optional features to customize an environmental chamber that is ideal for your needs. Click to add this item to your quote.
*Shown with options not included on standard chambers

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  • This chamber is frequently used for C. elegans, nematodes, yeast/fungi, insects, bacteria and BOD
  • Many other applications exist for this product

Percival’s IntellusUltra Controller

  • Percival Scientific has built a reputation of providing flexible, customized options for research scientists around the world. We have taken the philosophy to the next level with our improved IntellusUltra Controller. Now choose from the levels of functionality that meet your needs.

Lighting System

  • Fluorescent lamps horizontally mounted and fluorescent lamps vertically mounted
  • Intensity programmable up to 115 micromoles/m2/sec of light irradiance measured at 6” from lamps
  • Programming and control of the lighting is done via IntellusUltra real time controller

Cabinet Construction

  • Interior constructed of 22-gauge electro-zinc plated steel
  • Exterior constructed of 18-gauge exterior electro-zinc plated steel
  • Welded seams and joints on outer and inner shells
  • Inner shell supported by non-compressing/non-thermal conducting material locking inner liner in place without a metal-to-metal bond to outer case
  • Chamber is completely self-contained
  • Overall wall thickness is 2”


  • Woodless construction using CFC free insulation (overall wall thickness is 2”, ample insulation for maintenance of stated temperature range)


  • Each door opening is 29.2” x 27.5” provides full access to chamber interior (magnetic gasket provides a tight seal to door frame)

Interior Space

  • 14.6 cu.ft. with work area of 9.4 sq.ft. provided on two tiers


  • Two tiers of white epoxy coated steel wire shelving (each shelf is 25.13” x 26.9”)
  • Shelves are supported by shelf clips allowing 1/2” vertical adjustments
  • Maximum clearance between shelves is 7.8” per tier with both shelves installed


  • Interior and exterior painted with high reflective, environmentally friendly, high temperature baked white powder coating


  • Self-contained air-cooled condensing unit with hot gas bypass system for continuous compressor operation, extended life and close temperature control (this continuous running condensingunit ensures precise temperature control by alternating cycling refrigerant and hot gas to coil; this also prolongs life of compressor, and eliminates risk of ice build up in coil)
  • Solenoid valves have extended stem for quiet and long life operation

Temperature Range

  • 4-44C (+/- 0.5C) with lights on, 2-44C (+/- 0.5C) with lights off

Temperature Safety Limit Controls

  • Experiment Protection: Adjustable high and low temperature controls, audible alarms, and visual indicators provided
  • Controls shut down all power to chamber, activating alarms (when the temperature returns to the normal range the system will automatically reset)

Electrical Requirements

  • Consult Geneva Scientific for electrical requirements and amperage draw.


  • Additive Humidity Control with Sensor
  • Dehumidifier with Sensor
  • IntellusUltra Connect
  • Android-Based Touch Screen
  • CO2 Enrichment Package
  • Self-Contained Water-Cooled Condensing Unit
  • Dry Alarm Contacts
  • Dimmable Lighting
  • LED Lighting in Lieu of Fluorescent Lamps
  • Please contact us for more optional items

***Specifications subject to change.***

ModelTemp Range
(with lights on)
Interior Space (Volume)Total Shelving Floor AreaMaximum Growing HeightExterior DimensionsLight Intensity (6" from lamps unless noted)# of Tiers
I-22LLVL4-44±0.5 °C14.6* ft3
0.4* m3
9.4* ft2
0.9* m2
7.8 in
19.8 cm
33.5 in (W)
36.6 in (D)
77.9 in (H)
115 µmol/m2/s2*

Note: * Specifications for the I-22’s are per compartment unless otherwise noted. All of the I-22’s can be designed to have two different foot prints in one chamber. (I.e. I-22 with NL on top and LL on the bottom.)