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DG-1 CO is a microprocessor-based carbon monoxide detector. It is designed for areas where carbon monoxide levels are naturally higher – in boiler rooms, near fireplaces, stoves and gas cookers as well as in garages. The device detects dangerous gas concentrations above the threshold level during a specified period of time. With the built-in sounder and red LED, the DG-1 CO can operate as a standalone alarm, but it is also suitable for work as part of the alarm system.