Percival Scientific Seed Germination Chamber Model GR‑66L
Precision Seed Germination and Development Control
The GR‑66L is designed for seed germination, early plant development, and other controlled growth studies. With 30 tiers of wire shelving and programmable linear LED lighting, it provides precise environmental control for uniform growth conditions while maintaining easy access and visibility.
Features
IntellusUltra® Controller: Android-based touchscreen for 24/7 monitoring and control of temperature, lighting, humidity, and optional CO₂ enrichment. Supports step/ramp programming, deviation alarms, and event logging.
Lighting System: Vertically mounted linear LEDs, intensity programmable up to 120 μmoles m²/s at 6″, dimmable 5–100% output. Allows precise control for optimal seedling growth.
Shelving: 30 tiers of white epoxy-coated wire shelving (27″D × 25.1″W) with 2.6″ clearance between shelves, sliding easily on stainless steel rails.
Refrigeration & Temperature Control: Self-contained air-cooled condensing unit with hot gas bypass ensures precise temperature control, extended compressor life, and no ice buildup. Top-mounted for easy maintenance.
Experiment Protection: Adjustable high/low temperature limits with audible and visual alarms; automatic reset ensures safe operation.
Durable Construction: Interior of 22-gauge steel, exterior 18-gauge steel, fully welded seams. Polished stainless-steel floor with floor drain and hose assembly, caster assembly, and leveling legs included.
Core Technical Highlights
Exterior Dimensions: 66″W × 33.6″D × 77.2″H (requires 6″ clearance on right)
Interior Space: 62.4 cu ft
Work Area: 153 sq ft
Growing Height: 2.6″ per tier
Temperature Range: 5°–44 °C lights ON (±0.5 °C), 2°–44 °C lights OFF (±0.5 °C)
Light Intensity: 120 μmoles m²/s at 6″ from LED tiles
Shelving: 30 tiers of epoxy-coated wire shelves, adjustable in ½″ increments
Insulation: 2″ thick CFC-free woodless construction
Doors & Ports: Two full-access doors 29.2″ × 57.5″; two 1.25″ access ports on right-hand wall
Refrigerant: R-449a, dual-coil constant temperature control
Heat Rejection: 4,059 BTU/hr
Finish: High-reflectivity, environmentally friendly, powder-coated interior and exterior
Typical Applications
- Seed germination and early plant development
- Controlled growth studies requiring high shelf density
- Environmental stress studies with small seedlings
- Experiments requiring precise light and temperature control
Optional Upgrades
- Additive Humidity Control with Sensor
- Dehumidifier with Sensor
- CO₂ Enrichment Package
- Dimmable or LED Lighting Upgrades
- IntellusUltra Connect
- Android-Based Touchscreen
- Self-Contained Water-Cooled Condensing Unit
- Dry Alarm Contacts
- Additional 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.
