Percival Scientific Biological Incubator Model I-66VL
A high-capacity biological incubator engineered for precise temperature control and uniform LED illumination in multi-tier research environments.
The Percival I-66VL Biological Incubator is designed for laboratories requiring reliable, reproducible environmental control for drosophila culture, organism rearing, bioassays, seed germination, and product stability testing. With vertically mounted LED lighting, five-tier shelving, and the advanced IntellusUltra™ Controller, the I-66VL delivers consistent performance across dense experimental layouts.
Features
Uniform vertical LED illumination optimized for multi-tier biological applications
Five-tier shelving configuration maximizing usable work area within a compact footprint
Wide temperature operating range with ±0.5°C stability for experiment integrity
IntellusUltra™ controller enabling advanced programming, monitoring, and alarm protection
Self-contained, serviceable refrigeration system designed for long-term reliability
IntellusUltra™ Controller
A single, integrated control system providing 24/7 monitoring and precise regulation of chamber conditions.
Key features include:
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Control of temperature, lighting, humidity, and CO₂ (when equipped)
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Step & Ramp programming
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500 program steps across 50 programs
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16 programmable light/event outputs
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Deviation alarms and light lifetime alarms
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Four operating modes: Manual, Diurnal, Program, Non-Circadian
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Independent daytime and nighttime temperature offsets
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On-board diagnostics, ambient monitoring, and power-failure event logging
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Audible alarm buzzer and visual alarm display
Core Technical Highlights
Environmental Control & Lighting
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Linear LEDs mounted vertically on each side of every shelf
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Programmable light intensity up to 120 µmol m²/s measured at 6” from LEDs
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Light output dimmable from 5–100%
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Lighting fully controlled via IntellusUltra™ real-time controller
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Temperature range:
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4°–44°C (±0.5°C) with lights on
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2°–44°C (±0.5°C) with lights off
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Capacity & Interior Configuration
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Interior volume: 62.4 cu ft
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Total work area: 54 sq ft
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Shelving: Five tiers (10 shelves total)
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Shelf dimensions: 27” D × 25.1” W
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Maximum growing height: 9.5” per tier
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Shelves adjustable in ½” vertical increments
Construction & Insulation
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22-gauge electro-zinc plated steel interior
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18-gauge electro-zinc plated steel exterior
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Fully welded seams on inner and outer shells
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Inner liner isolated using non-compressing, non-thermal conducting material
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Woodless, CFC-free insulation with 2” overall wall thickness
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Completely self-contained cabinet design
Access & Usability
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Two full-height doors (29.1” W × 57.5” H) for unobstructed interior access
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Magnetic door gaskets ensure an airtight seal
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1.25” airtight access port on right-hand wall
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Chamber floor includes drain and hose assembly
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Caster assembly with adjustable leveling legs for lab floor compensation
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Interior and exterior finished in highly reflective, environmentally friendly white powder coating
Refrigeration System
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Self-contained, air-cooled condensing unit
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Hot gas bypass system for:
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Continuous compressor operation
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Extended compressor life
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Precise temperature control
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Elimination of evaporator coil icing
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Top-mounted refrigeration for easy maintenance access
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Heat rejected upward and dissipated into the room without affecting chamber performance
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Ceiling-mounted evaporator coil with twin air circulation fans
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Heat rejection: 3583 BTU/hr (standard configuration)
Safety & Experiment Protection
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Adjustable high and low temperature safety limits
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Audible alarms and visual indicators
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Automatic power shutdown when limits are exceeded
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System automatically resets once temperature returns to normal range
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Dual experiment protection via primary and independent secondary limit
Typical Applications
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Drosophila culturing and population studies
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Rearing and holding of test organisms
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Biological bioassays
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Seed germination research
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Product and material stability testing
The I-66VL Biological Incubator delivers dependable environmental control, scalable capacity, and advanced programmability—supporting reproducible biological research across multi-tier experimental designs.
Optional Upgrades
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Additive humidity control with sensor
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Dehumidification system with sensor
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CO₂ enrichment package
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IntellusUltra™ Connect (remote monitoring)
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Android-based touchscreen interface
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Self-contained water-cooled condensing unit
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Dry alarm contacts
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Optional electrical receptacles
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.






