Available in a variety of sizes, the Darwin MC Series Material Test/Cure Chambers are ideal for the rigors of precision temperature and humidity control in concrete, asphalt, and related industries. Unlike the vast majority of "testing" apparatus available to control temperature / humidity for engineering demands, these chambers provide reliable operation, durable construction and accurate results. The MC Series offers serious performance to engineers and researchers looking for serious results. To set the MC Series apart from typical “environmental chambers” or “home built units,” we have incorporated a number of features to produce the best chamber to meet ASTM, ACI, AASHTO, CCRL (The Cement and Concrete Reference Laboratory, a division of ASTM International), and other standards. Standard Features Galvanized Steel Construction Two Part Polyurethane, Factory Applied Liner for Exceptional Durability Industrial P.I.D Controls Robust Refrigeration Epoxy Coated Cooling Coils High accuracy Platinum RTD Sensor Waterproof Interior Fan Motors Built-in Drain Corrosion Resistant / Proof Shelving Options 2 1/2" Minimum Foamed In Placed Polyurethane Insulation Standard Alarms and Cut-Outs Standard Ramp / Soak Programming Exceptional Sample Storage Weight Capability Unmatched Temperature Control and Uniformity Conformity with ASTM Standards Non-Proprietary Controls Ongoing Sustainability Pre-Tested and Pre-Charged Refrigeration Systems Remote Alarm Dry Contacts Lockable Optional Features Back-up Control / Conditioning Stainless Steel / Special Surfaces Ethernet / Remote Monitoring / Alarming Humidification with UV Disinfection Desiccant Dehumidification with UV Disinfection Simple Redundancy Options Multi-Point Digital Recording Water-Cooled Or Air-Cooled Condensers Custom Lighting Systems Custom Shelving Freeze / Thaw Operation Glass Doors Available Service Agreements Calibration / Validation / Maintenance Services Touchscreen Control Interface Why Choose Darwin Chambers? Over 20 years of experience in providing rooms of varied complexity, highly efficient, eco-friendly technologies and systems. A dedicated, internal Service Department, providing full calibration and validation services. An industry-leading seven-year warranty on our thermoelectric system for reach in's. Entire cooling systems can be installed and replaced, quickly, with simple tools - no refrigeration tools or certified technicians necessary. Exceptional temperature and humidity control due to proportional microprocessor control. A Precision Fluid Temperature Control Unit (PFTCU) is a proprietary indirect cooling system for walk in's. It utilizes a combination of refrigeration technologies, propylene glycol/water heat exchange technologies, and the latest temperature control methods in order to out perform conventional refrigeration systems. Available extended warranty and preventive maintenance agreements, to most locations within the contiguous USA. Free 24/7 technical support via phone or e-mail, throughout the lifetime of your Darwin Chambers product. Skilled, knowledgeable staff, to ensure that we ask the right questions, and have a complete understanding of our customer’s needs as well as all other regulations, requirements, and project considerations and constraints. Flexibility and an expert engineering/design team, to provide innovative and highly customized solutions, in addition to our standard product. “Elegant” design. We have the capability to offer the best operational fit for your specific requirements—while typically providing systems that are the most efficient, sustainable, and competitively priced, as well.