The GX-D250 is a carbon dioxide warning device with exact measurement and display of all operating parameters on a clear-text display. The NDIR long-life infrared sensor is constantly monitored by twoControllern and delivers precise results with high repeatability. In the event of an alarm, a loud piezo sounds and a changeover relay switches. In the event of detected technical faults, e.g. cable breakage, a second relay switches.The GX-D250 offers the power supply necessary for the sensor, the concentration is transmitted digitally, thus also very long lines up to 200m from the sensor to the warning device are possible. The two relays are ideal for activating forced ventilation via the building control system. The alarm threshold was set to half the MAK of 2500 ppm CO2, but can alternatively be parameterized according to customer requirements. Talk to us.This CO2 warning device monitors indoor areas for exhaled carbon dioxide and is not suitable for CO2 from pressurized technical equ