Percival Scientific Biological Incubator Model I-41NL
Reach-in biological incubator without internal lighting for controlled dark-environment research.
The Percival Scientific I-41NL Biological Incubator is a reach-in chamber designed for drosophila culturing, organism rearing, bioassays, seed germination, and product stability testing where no internal lighting is required. Equipped with the advanced IntellusUltra™ Controller, the I-41NL delivers precise, repeatable environmental control in applications requiring stable temperature conditions without light interference.
Features
No internal lighting for dark or light-controlled studies
IntellusUltra™ environmental controller for precision monitoring and control
Six-tier shelving configuration for high-capacity sample storage
Uniform air circulation for consistent temperature distribution
Self-contained reach-in cabinet designed for laboratory environments
Built-in experiment protection with alarms and automatic reset
Technical Data
Environmental Performance
- Adjustable high and low temperature safety limits
- Audible and visual alarms
- Automatic system reset when conditions return to range
Lighting
- No lights installed inside the chamber
Shelving & Capacity
- Six tiers of white epoxy-coated steel wire shelving
- Shelf dimensions: 27” D × 36.3” W
- Adjustable in ½” increments
- Maximum clearance: 8” per tier with all shelves installed
Construction
- Interior: 22-gauge electro-zinc plated steel
- Exterior: 18-gauge electro-zinc plated steel
- Welded inner and outer shells
- Non-metallic thermal break between inner and outer cabinet
- Woodless, insulated cabinet with 2” overall wall thickness
- One 1.25” access port on right-hand wall
- Chamber floor with drain and hose assembly
- Casters with adjustable leveling legs
Refrigeration
- Self-contained, air-cooled condensing unit
- Hot gas bypass system for continuous compressor operation
- Top-mounted refrigeration system for easy service access
- Ceiling-mounted evaporator coil with twin circulation fans
- Heat rejection to ambient: 2900 BTU/hr
Typical Applications
- Drosophila culturing, rearing, and holding
- Test organism research and lifecycle studies
- Biological and toxicological bioassays
- Seed germination under dark conditions
- Product and material stability testing
Optional Upgrades
- Additive humidity control with sensor
- Dehumidifier with sensor
- CO₂ enrichment package
- IntellusUltra™ Connect remote monitoring
- Android-based touchscreen interface
- Water-cooled self-contained condensing unit
- Dry alarm contacts
- Additional optional accessories available upon request
Contact us for custom configurations to match your research workflow.
Expert Guidance You Won’t Get From Big Distributors
Unlike broad catalog sellers, we specialize in controlled environment systems with deep application support. Our team understands the experimental nuances: from controller programming to lighting strategies and environmental uniformity. We help you match chamber options to your research goals and ensure you get the right system.
Ready to refine your setup or get a tailored quote? Contact us for expert support and configuration advice.








