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. In particular, the invention describes methods for matching structured descriptions where the structured descriptions specify aspects or attributes of the requestor andor the requestors’ environment or context as well as the available services. A termination structure is proximate the second sidewall surface of the at least one column of the second conductivity type. A receiver configured to receive a reflection wave from the liquid and to convert it to an electrical signal. The first waveguide and the second waveguide are joined at an intermediate waveguide portion. The first trigger signal is applied to the first input terminal and the second trigger signal is applied to the second input terminal to drive the bistable device into the first stable state when the input signal has the first value.