Abstract: An apparatus has a housing with a fluid inlet in fluid communication with a fluid flow path, and a fluid outlet. The monitor includes a controllable valve and a diverter that accommodates different types of sensors. The housing includes a dry housing interior fluidly isolated from the fluid flow path. The monitor includes a power generator configured to generate a voltage when fluid flows through the fluid flow path and at least one sensor configured to measure at least one characteristic of a fluid flowing through the fluid flow path. The monitor includes a signal generator configured to transmit signals from the power generator and from the at least one sensor to a remote processor. The power generator is configured to power both the at least one sensor and the signal generator in response to fluid flow through the fluid flow path.

Abstract: A fluid testing system can be used to measure the levels of contaminants in a fluid system. The system can utilize anodic stripping voltammetry or some other chemical, electrical, or electrochemical process to measure the contaminant levels. Wire electrodes may be used to facilitate the tests. Unused portions of the electrode wires can be fed into the test chambers between tests to ensure clean and reliable electrodes for subsequent testing.

Abstract: A water usage monitor can include a housing having a fluid flow path, a fluid inlet in fluid communication with the fluid flow path, and a fluid outlet in fluid communication with the fluid flow path. The housing can include a dry housing interior fluidly isolated from the fluid flow path. The monitor preferably includes a power generator configured to generate a voltage when fluid flows through the fluid flow path and at least one sensor configured to measure at least one characteristic of a fluid flowing through the fluid flow path. The monitor can include a signal generator configured transmit signals from the power generator and from the at least one sensor to a remote processor. The power generator can be configured to power both the at least one sensor and the signal generator in response to fluid flow through the fluid flow path.

Abstract: A fluid testing system can be used to measure the levels of contaminants in a fluid system. The system can utilize anodic stripping voltammetry or some other chemical, electrical, or electrochemical process to measure the contaminant levels. Wire electrodes may be used to facilitate the tests. Unused portions of the electrode wires can be fed into the test chambers between tests to ensure clean and reliable electrodes for subsequent testing.