Humidifiers can include a liquid tank removably attachable to a base portion. The liquid tank can include an upper connector configured to engage a lower connector of the base portion when the liquid tank and the base portion are attached. The liquid tank can include a touch interface configured to receive a touch input from outside of the liquid tank and a liquid level sensor configured to output a signal representative of a level of liquid in the liquid tank. The base portion can include a controller that is in electrical communication with the liquid level sensor and the touch interface when the upper connector engages the lower connector. The controller can be configured to adjust operation of the humidifier based on signals received from the touch interface and can receive signals from the liquid level sensor representative of the amount of liquid in the liquid tank.

The disclosure generally describes computer-implemented methods, software, and systems for gauging tanks. A computer-implemented method includes generating, using an interrogator, a radio frequency signal directed towards a radio frequency identification (RFID) device that is freely floating on the liquid stored within the tank, receiving a return signal from the RFID device, the return signal being associated to a location of the RFID device, processing the return signal to determine a height of the liquid stored within the tank based on a triangulation algorithm, and determining a result data based on the height of the liquid stored within the tank and one or more tank characteristics.

A fluid tank system comprises a fluid container that includes a sensor opening in a fluid container wall defined by a rim, and a fluid level sensor comprising a radial flange on a proximate end of a longitudinally extending electronics stem that includes a distal end. The distal end of the electronic stem is inserted into the fluid container via the sensor opening and the radial flange seats on the rim. The distal end of the electronics stem is guided via a first radial support and a second radial support to a seat that is located coaxial with the sensor opening, where the first and second radial supports are longitudinally separated and radially spaced apart to allow the electronics stem to longitudinally pass between the first and second radial supports until the flange seats on the rim ensuring that the distal end of the electronic stem is longitudinally positioned adjacent to the seat.

Disclosed is a detector system for detecting underground anomalies comprising a detector device which includes a fluid chamber which is sealed; a float including a target, positioned within the fluid chamber; and a shielded phase shift proximity sensor configured to detect a distance between the target and proximity sensor, wherein a presence of an underground anomaly is determined based on the detected distance.

Disclosed is a detector system for detecting underground anomalies comprising a detector device which includes a fluid chamber which is sealed; a float including a target, positioned within the fluid chamber; and a shielded phase shift proximity sensor configured to detect a distance between the target and proximity sensor, wherein a presence of an underground anomaly is determined based on the detected distance.

The disclosure generally describes computer-implemented methods, software, and systems for gauging tanks. A computer-implemented method includes generating, using an interrogator, a radio frequency signal directed towards a radio frequency identification (RFID) device that is freely floating on the liquid stored within the tank, receiving a return signal from the RFID device, the return signal being associated to a location of the RFID device, processing the return signal to determine a height of the liquid stored within the tank based on a triangulation algorithm, and determining a result data based on the height of the liquid stored within the tank and one or more tank characteristics.

The disclosure generally describes computer-implemented methods, software, and systems for gauging tanks. A computer-implemented method includes generating, using an interrogator, a radio frequency signal directed towards a radio frequency identification (RFID) device that is freely floating on the liquid stored within the tank, receiving a return signal from the RFID device, the return signal being associated to a location of the RFID device, processing the return signal to determine a height of the liquid stored within the tank based on a triangulation algorithm, and determining a result data based on the height of the liquid stored within the tank and one or more tank characteristics.

A sensor assembly that includes a sealed housing. A printed circuit board assembly including a first section that includes processing circuitry is disposed within the sealed housing and a second section that includes detection circuitry extends from the sealed housing. The sensor assembly also includes a conductive target movably coupled to the second section of the printed circuit board to vary net voltage of the detection circuitry as the conductive target moves along the second section to provide an output signal. The processing circuitry detects the output signal and converts the output signal into a linear representation of position of the conductive target in relation to the second section.

A sensor assembly that includes a sealed housing. A printed circuit board assembly including a first section that includes processing circuitry is disposed within the sealed housing and a second section that includes detection circuitry extends from the sealed housing. The sensor assembly also includes a conductive target movably coupled to the second section of the printed circuit board to vary net voltage of the detection circuitry as the conductive target moves along the second section to provide an output signal. The processing circuitry detects the output signal and converts the output signal into a linear representation of position of the conductive target in relation to the second section.

The invention is a Wi-Fi enabled fluid level alarm that is suitable for direct service outdoors. The alarm is preferably used in a sump pump, septic system or similar fluid pumping system and has a fluid sensor within the system communicating with the alarm to alert a homeowner when the fluid sensor indicates a certain fluid threshold has been met. The sensor relays information through an onsite alarm device to a centralized monitoring computer which processes the data and subsequently alerts a homeowner of the high fluid level, or other data, provided by their alarm system. Additionally, the system monitors alarm power and network connection through a health pulse notification systems that sends intervals of data to the central server.