A system monitors gas flow and pressure to a gas appliance in a fluid network comprising an analyzer. The analyzer has a housing defining an inlet, an outlet, and an interior in fluid communication with the inlet and the outlet. At least one sensor is coupled to the analyzer and configured to generate at least one signal related to gas being supplied to the gas appliance. A smart device communicates with the analyzer, wherein the smart device has a user interface and is configured to monitor, store and display data. The smart device can present any or all of a plurality of parameters such as the flow of gas, a capacity of the flow of gas, a temperature, a pressure of the gas and the like to a user based on signals from sensors.

Disclosed is an apparatus for relieving pressure in a fluid transportation system. Further, the apparatus may include an actuator configured to be mounted onto the handle of the flow control member. Further, the apparatus may include a valve sensor configured to be attached to a pressure relieving valve. Further, the apparatus may include an image capturing device configured to capture an image of a pressure gauge. Further, the apparatus may include a processing device communicatively coupled to the actuator, the valve sensor and the image capturing device. Further, the apparatus may include a storage device communicatively coupled to the processing device. Further, the apparatus may include a wireless transceiver communicatively coupled to the processing device. Further, the apparatus may include a touchscreen display device communicatively coupled to the processing device.

A pressure transmitter is mounted to the sampling output of a sampling meter resetter. The pressure transmitter and the sampling meter resetter are mounted in a subterranean meter box. In embodiments, the pressure transmitter is removably mounted to a spring-loaded sampling valve.

Systems and methods for providing network connectivity and remote monitoring, optimization, and control of pool/spa equipment are provided. “Internet-of-Things” (IoT) functionality is provided for pool and spa equipment in a flexible and cost-effective manner. Network connectivity and remote monitoring/control of pool and spa equipment is provided by various components such as a network communication and local control subsystem installed in pool/spa equipment, and other components. Also disclosed are various control processes (“pool logic”) which can be embodied as software code installed in any of the various embodiments of the present disclosure.

A liquid monitoring system includes a remote measurement device located at a location of the fire hydrant that is in contact with water provided by a water main. The remote measurement device has sensors that measure characteristics of the water and a communication interface that transmits measured information to a communication network device that may be located elsewhere on the fire hydrant. The communication network device communicates with a communication network.

Methods, systems, and apparatuses are provided for detecting and determining conditions of and conditions within a fluid conduit.

A method of calculating and outputting pressure information about the status of an actual pressure of a gas bottle of a door damper at 200 C, performed on a smart device. The method includes receiving, from a non-compensated pressure gauge, a pressure input indicating an actual pressure of said gas bottle of said door damper at ambient temperature, receiving a temperature input indicating an actual temperature of said gas bottle of said door damper, and using said inputs to calculate and convert said actual pressure of said gas bottle of said door damper at ambient temperature to a pressure at a temperature of 200 C, and further comprising outputting pressure information about the status of the gas bottle of said door damper based on said converted pressure at 200 C.

A sub-slab monitor includes a housing configured to extend through a foundation such that an upper surface of the housing is in contact with an indoor air environment and a lower surface of the housing is in contact with a sub-slab environment. A pressure sensor contained within the housing is configured to measure a differential pressure between the indoor air environment and the sub-slab environment, and electronics contained within the housing include a communication circuitry for communicating differential pressure data from the pressure sensor to a computer and a battery. A system and method for sub-slab monitoring includes providing and installing one or more sub-slab monitors and uploading differential pressure data from the one or more sub-slab monitors onto a central computer.

An air filter includes filter media, a sensor, and circuitry coupled to the sensor, the circuitry configured to receive data from the sensor representative of the condition of the filter media and wirelessly transmit such data. The data may be received by a device with a display to use the information to present an indication of the filter media condition to a user.

An in-tire electric device having a bracket and an electric circuit unit detachably held by the bracket includes: an engagement protrusion and an engagement hole provided on the electric circuit unit and the bracket to engage with each other to restrict, through a two-step operation where the electric circuit unit is moved in a first direction and then moved or rotated in a second direction intersecting the first direction, all movements and rotations except for a reverse of the second direction; a retainer mounted on the bracket from a direction intersecting the second direction and facing the electric circuit unit in the second direction to restrict the electric circuit unit from moving in the second direction; and retainer locking portions formed on the bracket and the retainer and engage with each other by elastic deformation of one of the retainer locking portions to lock the retainer to the bracket.