The Honeywell Analytics 301C-DLC Gas Detection Controller provides continuous monitoring of up to 96 inputs/outputs, on three channels, at distances up to 2000'. Modbus communication channels are included. The 301C-DLC is pre-programmed at the factory, but menu driven changes can be made in the field. The 301C-DLC allows monitoring of an entire network and will initiate an alarm or ventilation activation upon detection of a gas. One model is available with datalogging. The 301C-DLC Gas Detection Controller is designed to be used as part of a control system that helps to prevent the formation of a hazardous environment when properly installed and maintained.