





In-VitroCellNU-5841
Direct Heat CO2 Incubator
Direct Heat | 200-Liter Capacity | Oxygen Suppression | Humidity Control
The In-VitroCell model NU-5841 is a direct heat CO2 incubator that features an RH sensor and water reservoir in place of a water pan to control the growth chamber's humidity levels to the setpoint. In addition, the NU-5841 also offers the ability to suppress oxygen levels by monitoring O2 levels in the chamber and injecting nitrogen gas to meet the setpoint. A large 7.06 ft3 (200 Liter) capacity chamber is a perfect solution for principal investigators looking for a robust solution for hypoxic stress studies, stem cell culture research, and more.
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Products
NU-5841
115V
NU-5841E
230V
Quick Specs
CO2 Accuracy | ± 0.1% |
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CO2 Recovery | Up to 5% ± 0.2% / -0.5 in 5 minutes Average |
Control System | NuTouch |
Temperature Accuracy °C | ± 0.1% |
Temperature Control | Direct Heat |
Temperature Recovery | 0.12°C/min. on Average |
Temperature Uniformity °C | ± 0.35°C @ 37°C |
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Features
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Specs
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Options & Accessories
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Resources
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Citations

Hypoxic Conditions
Oxygen Control
For more sensitive cells lines prone to stress and DNA damage, CO2 Incubator models featuring Oxygen control utilize an O2 sensor to monitor oxygen in the growth chamber. Nitrogen (N2) gas is injected to suppress oxygen to set point. An extensive O2 range applies to various research applications, including the brain, eyes, liver, heart, kidneys, and more.

Reduce Cell Desiccation
Precise Humidity Control
Relative humidity levels up to 90% are achieved in the growth chamber through the use of a 3-liter reservoir external to the chamber. The chamber air is routed through the water vapor saturated the air in an evaporate box to add humidity when the RH sensor indicates more humidity is needed to meet set point.
Constant Contamination Control
Advanced features mitigate risks due to contamination. Using a slight positive pressure within the chamber eliminates contaminated laboratory air entering the growth chamber. Air and gas pass through 99.99% @ 0.3 micron efficient HEPA filters before entering the chamber resulting in conditions similar to an ISO Class 5 cleanroom. Smooth rounded corners eliminate potential hiding places for contaminates. An overnight procedure running a decontamination cycle at 145° Celsius dry or 95° Celsius humidified is the perfect solution for the fight against contamination. Contamination control is just one more reason NuAire is the safer choice for your laboratory.
Infrared (IR) Sensor
A single source dual wave infrared (IR) sensor controls CO2 levels within the growth chamber to maintain an optimal PH. The wavelengths used are absorbed only by CO2, making the measurements insensitive to other components such as water vapor. Advanced design provides a stable output minimizing drift, and requires less frequent calibrations.
Uniform Temperature
The Direct heating elements or the water jacket are wrapped in high density insulation which surrounds the growth chamber. Dual temperature sensor probes relay information back to the NuTouch Electronic Control System and make adjustments as needed.
The NuAire© Advantage
NuAire® utilizes an independent network of sales and service professionals offering our customers a vast array of knowledge and relationships. Our inside sales and service teams are the pride of the industry; some of which have been with NuAire® since the beginning in 1971. We work hard and diligently to make you happy. That is our mission, and that is why we come to work every day. Purchase a NuAire® and become part of our family.
Warranty
Backed by the Industry's Best
- 3 Years Parts & Labor, IR Sensor 5 Years Parts Only (United States and Canada)
- Consult Local Distributor (Global)
Standard Features
- Chamber Volume: 200L (7.06 Cu. Ft.)
- NuTouch Electronic Control System
- Decontamination Cycle: 145°C Dry, 90°C Humidified
- Humidity Control: Reservoir, RH Sensor Controlled
- O2 Control: Sensor (0.5 - 21%)
- Closed Loop HEPA Filtration System
- Leg Levelers
Est. Shipping Width Inches (mm) | 31 (787) |
Est. Shipping Height Inches (mm) | 51 (1219) |
Est. Shipping Depth Inches (mm) | 31 (787) |
Access Port Location | Right Side |
Chamber Air Circulation Method | Air Pump |
Chamber Air Filter | 99.97% Efficiency @ ≥ 0.3 Micron Capsule Filter Located in Sensor Bay |
Chamber Heater(s) Location | Walls, Top and Bottom of Chamber |
Chamber Jacket Technology | Air Jacket via One or Two Axial Fans Drawing Air into Shell |
CO2 Accuracy | ± 0.1% |
CO2 Control Logic | Fixed Algorithm/Manual, Environmental Adaptable |
CO2 Display Resolution | 0.1% |
CO2 Range | 0.1 to 20%, 5% Default Set Point |
CO2 Recovery | Up to 5% ± 0.2% / -0.5 in 5 minutes Average |
CO2 Sensor Type | Infrared (NDIR) |
Control System | NuTouch |
Data Output Features | RS-485, USB, 4-20mA |
Door and Perimeter Heater Control Logic | Base Duty Cycle set to chamber temperature Set-Point, Proportional 0-100% [manually adjustable |
Electrical Configuration | 115V50Hz, 230V5060Hz |
Exterior Depth Inches (mm) | 27.188 (691) |
Exterior Door Seal | Magnetic Outer Door Gasket |
Exterior Height Inches (mm) | 39.688 (1008) |
Exterior Material | Cold Rolled 16 & 18 Gauge Steel, Finished in Powder Coated Polyurethane Finish |
Exterior Width Inches (mm) | 26.750 (680) |
Footprint Depth inches (mm) | 20.75 (527) |
Footprint Width inches (mm) | 23.75 (603) |
In-line Gas Filters | 99.97% Efficiency @ ≥ 0.3 Micron Disk Filters for Gas & Air Supplies, Disk Filter for CO2 Sensor |
Segmented Doors | Option, Set of 6 Inner Doors, 2 Across by 3 Down |
Inner Doors | One |
Insulation | High Density Insulation with High "R" Rating |
Interior Depth Inches (mm) | 20.053 (509) |
Interior Door Seal | Silicone Rubber Gasket |
Interior Height Inches (mm) | 28.500 (724) |
Interior Material | Polished Type 304L 16 Gauge Stainless Steel |
Interior Volume Cubic Feet (Liters) | 7.06 (200) |
Interior Width Inches (mm) | 21.257 (540) |
Net Weight lbs (kg) | 235 (106) |
O2 Accuracy | ± 0.25% |
O2 Control Logic | Fixed algorithm/ manual environmental adaptable |
O2 Display Resolution | 0.1% |
O2 Measuring Range | 0 - 25% |
O2 Set Point Range | 0.5 -21.0% (ambient) (21.0% Default) |
O2 Recovery | 5.0 ± 0.5% twenty minutes on Average |
O2 Sensor Type | Zirconia Ceramic |
Power Cord Length Foot (Meter) | 8 (2.5) |
Remote Alarm Terminals | Standard |
RH Accuracy | +5% /- 3% |
RH Control Method | Water Pan or Evaporator Box, Depending on Model |
RH Control Logic | Fixed algorithm/manual environmental adaptable |
RH Control Range | Ambient dependent to 90% |
RH Display Resolution | 0.1% |
RH Evaporator Box Capacity | 3L |
RH Recovery | 90% +5%/-3% within 25 minutes on average |
RH Sensor Type | Precision capacitance bulk-polymer |
RH Water Pan Capacity | 2L (Recommended Fill 1.5L) |
Sample Port Location | Inner Glass Door |
Shelf Capacity lbs (kg) | 25 lbs per Shelf / 125 lbs per Incubator |
Shelf Depth Inches (mm) | 18 3/4 (476) |
Shelf Material | Stainless Steel or Copper Alloy |
Shelf Width Inches (mm) | 19 3/4 (502) |
Shelves | 4 Shelves Supplied, 20 Shelves Maximum Capacity |
Est. Shipping Weight lbs (kg) | 325 (147) |
Decontamination Cycle | 95°C Humidified Decontamination, 145°C Dry Decontamination Cycle |
Temperature Accuracy °C | ± 0.1% |
Temperature Control | Direct Heat |
Temperature Control Range | 5°C above ambient (to a 30°C max ambient) to 55°C |
Temperature Display Resolution | 0.1°C |
Temperature Recovery | 0.12°C/min. on Average |
Temperature Sensor Type | Precision Integrated Circuit |
Temperature Set-Point Range | 5°C to 55°C (37.0°C Default) |
Temperature Uniformity °C | ± 0.35°C @ 37°C |
Water Pan Depth | 1.5 (38) |
Water Pan Length Inches (mm) | 12 (305) |
Water Pan Width | 10 (254) |
Electrical
NU-5841 | NU-5841E | |
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Electrical Configuration | 115V60Hz | 230V5060Hz |
General
NU-5841 | NU-5841E | |
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Safety Certification | [ "", "UL, UL-C" ] | [ "", "UL, UL-C" ] |
Chamber
Copper Alloy Chamber 115V |
Copper Alloy Chamber 230V |
Stainless Steel Chamber 115V |
Stainless Steel Chamber 230V |
Inner Door
Inner Glass Door |
Sectioned Inner Door |
Outer Door (Right Hinge Standard)
Left Side Door Hinge |
Power Cord
Euro Power Cord Option Shipping Kit |
UK Power Cord Option |
NuAire Accessories

CO2 Incubator Cut Sheet for models NU-5800, NU-5810, NU-5820, NU-5831, NU-5841
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