Abstract: The system and method for simulating hazardous environments provides simulated meter readings of hazardous environment for training first responder entry teams by controlling a simulated display provided to portable detection meters, such as via a wireless interface. The simulator provides meter reading displays for selected environments and allows for two-way interactive response. A master control unit allows direct control of individual meter displays and scenarios representing various hazardous environments. A hazardous environment is reflected by parameters indicating the presence of hazardous substances, and the apparatus can be implemented by external placement on current meters, as part of a general training meter, or using technology to internally control existing meters.