Percival Scientific Seed Germination Chamber Model GR‑36L
Precision-Controlled Seed Germination and Early Plant Development
The GR‑36L is engineered for seed germination and development experiments, providing compact high-density shelving with 15 tiers of wire shelves and programmable vertical LED lighting. Its precise environmental control system ensures uniform growth and reliable experimental results.
Key Features
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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.
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Lighting System: Vertically mounted linear LEDs, intensity programmable up to 140 μmoles/m²/s at 6″, dimmable 5–100% output for optimized seedling growth.
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Airflow & Circulation: Conditioned air flows horizontally through the chamber, maintaining uniform temperature and humidity across all tiers.
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Shelving: 15 tiers of white epoxy-coated steel wire shelving (27″D × 25.1″W) with 2.6″ clearance between shelves, sliding easily on stainless steel rails.
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Refrigeration & Temperature Control: Self-contained air-cooled condensing unit with hot gas bypass ensures precise temperature control, extended compressor life, and no ice buildup. Ceiling-mounted evaporator coils with dual fans provide uniform cooling.
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Experiment Protection: Adjustable high/low temperature limits with audible and visual alarms; automatic reset ensures safe operation.
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Durable Construction: Interior 22-gauge steel, exterior 18/26-gauge steel, fully welded seams, polished stainless-steel floor with floor drain and hose assembly, caster assembly, and leveling legs included.
Specifications
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Exterior Dimensions: 33.5″W × 33.6″D × 77.2″H (requires 6″ clearance on right)
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Interior Space: 29.7 cu ft
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Work Area: 76.5 sq ft
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Growing Height: 2.6″ per shelf
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Temperature Range: 5°–44 °C lights ON (±0.5 °C), 2°–44 °C lights OFF (±0.5 °C)
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Light Intensity: 140 μmoles/m²/s at 6″ from LED tiles
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Shelving: 15 tiers of epoxy-coated wire shelves, adjustable in ½″ increments
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Insulation: 2″ thick CFC-free woodless construction with R-value of 12.5
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Door & Ports: Single full-access door 29.2″ × 57.5″; two 1.25″ diameter access ports on right-hand wall
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Refrigerant: R-449a, dual-coil constant temperature control
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Heat Rejection: 2,217 BTU/hr
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Finish: High-reflectivity, environmentally friendly, powder-coated interior and exterior
Typical Research Applications
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Seed germination and early plant development
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Controlled growth studies requiring compact high-density shelving
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Experiments requiring precise light and temperature control
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Seedling stress response studies
Optional Configurations
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Additive Humidity Control with Sensor
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Dehumidifier with Sensor
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CO₂ Enrichment Package
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Dimmable or LED Lighting Upgrades
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IntellusUltra Connect
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Android-Based Touchscreen
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Self-Contained Water-Cooled Condensing Unit
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Dry Alarm Contacts
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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.
