All have mechanical convection for excellent temperature uniformity, corrosion–resistant interiors and shelves, magnetic door gasket, lock, interior light and enameled exterior.

A. Standard– 20 cu. ft. Includes 6 shelves to hold over 250 B.O.D. bottles. Microprocessor control provides high/low limit set–points and LED display. Uniformity is ±0.5°C at 20°C. RS–232 and recorder jacks allow external control and documentation Key locked door. 120 V, 50/60 Hz.

B. Illuminated Chamber–17.8 cu. ft. Features cycled light and heat to allow automatic cycling of temperature and illumination for photosynthetic, soil experiments and other tests involving diurnal simulation. Programmable for up to seven days with two light cycles per day. Two internal fluorescent bulbs provide 300 footcandles of lighting for uniform illumination. Microprocessor temperature control provides high/low limit set–points and LED display. Uniformity is ±0.6°C at 20°C. Software lockout and keyed door protect your testing conditions. Includes 6 shelves. 120 V, 50/60 Hz.

C. Large-Capacity Chamber – 30 cu. ft. Provides 30 ft. of sample area on 6 adjustable shelves. Choose steel (14624G) or glass (14624H) observation door. Reliable hydraulic temperature control includes backup high limit thermostat and dial thermometer. Switch turns cooling off when only heating is required and controller provides high wattage for rapid heat–up and low wattage for set–point maintenance. Includes an internal duplex electrical outlet to allow use of stirrers or shaker within. 120V, 50/60 Hz.