Percival Scientific Reach‑In Plant Growth Chamber Model E‑41L2
High-Performance Multi-Tier Plant Growth for Research & Laboratory Applications
The Percival Scientific E‑41L2 is a two-tier controlled-environment plant growth chamber designed for short-term plant studies and compact plant species. Ideal for alfalfa, forages, peanut, potato, bluegrass, and other small or medium-height crops, this chamber delivers precise temperature control, programmable high-intensity LED lighting, and robust experiment protection to support reproducible lab and greenhouse research.
Features
Dual-Tier LED Lighting for Maximized Productivity: SciWhite LED array with enhanced red spectrum delivers up to 800 µmol m²/s at 6″ from the lamps, fully dimmable (10–100%) for customizable light regimes. Two tiers allow simultaneous multi-level plant studies.
Accurate Temperature Control: Maintain stable conditions with ±0.5 °C control across the 7–44 °C range (lights ON) or 2–44 °C (lights OFF), ensuring reproducible environmental conditions for research experiments.
Intuitive Control with IntellusUltra™: Real-time programming of temperature, lighting, humidity, and optional CO₂ enrichment. Graphical displays and alarm logging support complex, automated experiment schedules.
Experiment Safety: Dual independent safety limits with visual and audible alarms automatically protect against excursions, resetting when conditions return to target range.
Optimized Airflow: Specifically designed air diffuser circulates air across both shelves for uniform temperature, light exposure, and plant growth.
Core Technical Highlights
Environmental & Lighting
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Temperature Range: 2–44 °C (lights OFF) / 7–44 °C (lights ON), ±0.5 °C stability
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Lighting: Two-tier SciWhite LED array with red enhancement, up to 800 µmol m²/s, dimmable 10–100%
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Airflow: Ceiling fan and back-wall diffuser system ensures uniform conditions across both tiers
Capacity & Interior
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Interior Volume: ~37.2 cu ft
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Work Area: 13.6 sq ft (two tiers)
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Maximum Growing Height: 22.6″ per tier
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Shelving: Two epoxy-coated steel wire shelves, vertically adjustable in ½″ increments
Construction & Serviceability
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Interior: 26-gauge smooth galvanized steel with 24-gauge polished stainless steel floor
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Exterior: 24-gauge Galvannealed smooth steel with NSF-compliant seams
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Insulation: 2″ foamed-in-place, woodless, non-CFC urethane, 93% closed cell, R‑value 12.5, K‑value 0.16, density 2.2 lbs/cu ft
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Top-mounted air-cooled condensing unit with hot gas bypass enhances temperature precision and extends compressor life
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Ceiling-mounted evaporator coil with twin aluminum fans; heat rejection ~3,426 BTU/hr
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Caster assembly with adjustable leveling legs for stability and easy placement
Access & Usability
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Full-size reach-in door (36.8″ × 57.5″) with magnetic gasket and lift-off hinge for easy access
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One 1.25″ airtight access port for cabling, sensors, or instrumentation
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Two 120 V convenience receptacles included
Typical Applications
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Short-term plant growth studies
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Alfalfa, forages, peanut, potato, bluegrass cultivation
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Photoperiod and controlled light experiments
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Physiological, pathological, and developmental plant research
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Compact plant species or multi-level growth studies
Designed for stable environmental control, high-intensity LED lighting, and dual-tier productivity, supporting reproducible and reliable data for peer-reviewed research and laboratory-grade plant studies.
Optional Upgrades
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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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IntellusUltra™ Connect with Android touchscreen interface
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Self-contained water-cooled condenser
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Dry alarm contacts
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Alternate or dimmable LED lighting packages
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.
