The Growth Chamber Zone is currently equipped with 37 Conviron chambers of different sizes and capabilities. Units include standard chambers in 7, 15, and 36 ft² models; multi-function TC30 chambers used for Arabidopsis and specialized 36 ft² chambers.

All the chambers are equipped with magnetic refrigeration valves, atomizing spray nozzles, and provide precise control over temperature (+/- 0.1°C), relative humidity (+/- 3%), light intensity and photoperiod.

Specialized chambers are equipped with high light fluorescent or metal halide canopies providing intensities of over 1000 µmoles/m²/s, low temperature capability (-10°C), refined humidity control (30%-95% RH) and CO₂ control (180-3000 µmol/mol^-1) options.

Chambers are individually controlled with microprocessors and computers which are connected to a central computer control system. All programming, data collection and maintenance planning for the individual chambers are managed through the central computer system. Automated telephone dialers contact Phytotron staff immediately whenever alarm conditions arise.

Remote access to all Phytotron computers is possible via modem using PcAnywhere terminal emulation software packages and more recently by direct internet connection using Conviron's V7 central control system. Over the past decade, the McGill University Phytotron has collaborated with industry partners in the testing and development of numerous controlled environment technologies including control computer hardware and software, novel lighting technologies and CO₂ control systems.