Abstract: The effluent monitoring system generates an action perform signal for controlling a sampler device or an alarm in response to detecting a plurality of probe inputs receiving signals from a plurality of effluent property detecting probes. A variable and dynamic response to the probe inputs is provided. A plurality of monitoring parameter sets are stored in a memory along with a state number value, and the system may change state number in response to exceeding a threshold value which will result in the system being responsive to a new set of monitoring parameters in order to respond in a variable and dynamic manner. The sampling rate and the rate of recording values of the probe inputs can also be dynamically varied in response to the probe inputs themselves.