A sensing device includes a first sensor configured to capture a first analyte in a fluid medium and to generate a first signal in response to capturing the first analyte. The sensing device also includes a second sensor configured to capture a second analyte in the fluid medium and to generate a second signal in response to capturing the second analyte, where the second analyte is different from the first analyte. The sensing device further includes a detector configured to collect the first and second signals to provide a total signal and to calculate a total concentration of the first and the second analyte in the fluid medium based on the total signal.

A drinking water supply system includes a drinking water line system, a plurality of drinking water withdrawal points connected to the drinking water line system, at least one sensor which is designed to determine measuring values, and a central control device which is designed to receive and evaluate the measuring values determined by the at least one sensor. The system also includes a presence detector designed to determine information about the presence of a person, or an acoustic sensor designed to measure measuring values for the volume. The central control device is designed to control the drinking water supply system as a function of the information about the presence of a person or as a function of the measured values for the volume. A method for controlling such a drinking water supply system and a computer program that causes the method to be carried out are also provided.

Disclosed are a water quality analyzer and a method for analyzing water quality. The water quality analyzer includes a first disc system, a second disc system, a colorimetric system, a cleaning system, a mechanical sampling system, an analysis system and a central control display. The first disc system and the second disc system are axially rotatable. A plurality of sample locating positions and a chemical locating positions are provided on the first disc system along a circumference of the first disc system. A plurality of colorimetric cuvette locating positions are provided on the second disc system, and the colorimetric system is arranged at a circumference edge of the second disc system. The cleaning system and the mechanical sampling system are provided between the first disc system and the second disc system. The method includes water sampling, water sample injection, cleaning, reagent extraction, reagent injection, cleaning and colorimetric analysis.

A water monitoring system comprising a hydrogen peroxide sensor configured to determine a concentration of hydrogen peroxide in water in a conduit. The hydrogen peroxide sensor further comprises an ultraviolet light sensor configured to determine an ultraviolet light absorbance level of the water in the conduit. The ultraviolet light absorbance level is used to determine the concentration of hydrogen peroxide. The hydrogen peroxide sensor may further comprise a visible light sensor configured to determine a turbidity level of the water in the conduit. The turbidity level also is used to determine the concentration of hydrogen peroxide.

The present invention is directed to a water condition monitoring device and related methods of use that significantly reduce the cost of the water condition monitoring devices by replacing the expensive and bulky multiple sensor electrodes of currently available devices with a single set of two or three metal electrodes to detect and/or measure such water quality parameters as pH, electric conductivity, temperature, and dissolved oxygen content. A microcontroller activates each sensor one at a time in a continuous loop, processing the sensor signals into near real time water condition data, which may be stored, displayed, or sent to a remote location for storage or display.

The invention relates to a drinking water supply system including a drinking water line system, a plurality of drinking water withdrawal points connected to the drinking water line system, at least one sensor which is designed to determine measuring values, a central control device which is designed to receive and evaluate the measuring values determined by the at least one sensor, a plurality of decentralized control elements which are designed to influence at different locations in the drinking water supply system one or more properties of the water guided in the drinking water supply system, wherein the central control device is designed to control the control elements for influencing the one or more properties of the water guided in the drinking water supply system, and wherein a plurality of control elements are or can be combined to form a virtual group.

The present disclosure relates to apparatuses, kits and methods for testing quality. The water testing apparatus for analyzing at least one parameter and/or at least one substance from water flowing through a faucet and/or a water pipe comprises at least one sensor configured to directly contact said water flowing through said faucet and/or said water pipe, and an analyzer for analyzing said at least one parameter and/or at least one substance, said analyzer being in communication with said at least one sensor.

Methods, systems and apparatuses using: (i) a flow control unit including: piping inlets and outlets for connecting thereby to different parts located at different locations of a water facility (WF) and of the apparatuses themselves and multiple controllable valves, each being deployed at a different inlet or outlet of the multiple piping inlets and outlets; (ii) a detection unit including at least one sensor for sensing characteristics of the WF in various locations and/or states of the WF; and a controller, configured to control operation of the valves, for measuring one or more characteristics of a selected detection location or state of the WF or of water manipulated within the apparatuses. The methods, systems and apparatuses may further be configured to apply manipulations over a water sample, sampled from the WF and/or over water from the WF and measure responses to the applied manipulation(s).

With respect to atmospheric steam generating humidifiers, the present disclosure resolves the problem of end-users not adjusting the drain interval of the humidifier by using an electronic controller to automatically choose an appropriate drain interval without requiring any user input. The electronic controller accomplishes this by receiving input data from a sensor that measures a water quality parameter, automatically determining a drain interval based on the received data, and sending an output control signal to a drain water control valve to execute a drain event in accordance with the drain interval. In some examples, the electronic controller utilizes a look-up table correlating the water quality parameter to a total dissolved solids or cycles of concentration value.

A sensor for detecting the breakthrough of hardness in a water softener measures a change in the conductivity of elongated cation-exchange material in contact with the treated water.