CEA Instruments, Inc.’s new GD-888 series of infrared carbon dioxide gas monitors can measure full ranges of carbon dioxide (CO2) up to one per cent, 10 per cent or 100 per cent volume, the company says. The portable monitors come with a battery charger, tubing, operation manual and AC power supply. This series of gas monitors includes digital display, outputs, adjustable alarms, backlight and an internal sample pump. They can be used in hazardous environments, laboratory and research projects, ventilation systems, cooling systems, food-related industries, breweries, greenhouse horticulture, welding and mushroom growing. They can also be used in other applications where carbon dioxide or IAQ levels need monitoring, the company says.