A pressure monitoring system for a wet barrel hydrant includes an outer housing comprising a substantially cylindrical sidewall shell and a cap coupled to the substantially cylindrical sidewall shell, a center axis extending centrally through the pressure monitoring system; a pressure sensor configured to measure a pressure of a fluid received in the wet barrel hydrant; and an antenna assembly comprising an antenna, the antenna configured to send signals representative of pressure data measured by the pressure sensor, wherein the antenna assembly is circumferentially surrounded by the cap and is axially spaced from the substantially cylindrical sidewall shell.

A pressure monitoring system for a wet barrel hydrant includes an outer housing comprising a substantially cylindrical sidewall shell and a cap coupled to the substantially cylindrical sidewall shell, a center axis extending centrally through the pressure monitoring system; a pressure sensor configured to measure a pressure of a fluid received in the wet barrel hydrant; and an antenna assembly comprising an antenna, the antenna configured to send signals representative of pressure data measured by the pressure sensor, wherein the antenna assembly is circumferentially surrounded by the cap and is axially spaced from the substantially cylindrical sidewall shell.

A pressure indicator includes a body, a piston, first and second biasing elements, and a rotatable disc. The piston is disposed at least partially in a bore of the body at a first longitudinal axial position relative to the body when pressure of fluid acting on the base is below a threshold pressure. The first biasing element is disposed between a base of the piston and a shoulder of the body, wherein a force of the first biasing element is overcome by pressure of fluid acting on the base at or above the threshold pressure, thereby allowing the piston to move to a second longitudinal axial position. The rotatable disc has a first rotational position when the piston is in the first axial position. The second biasing element is configured to urge the disc to a second rotational position when the piston is in the second axial position.

A pressure indicator includes a body, a piston, first and second biasing elements, and a rotatable disc. The piston is disposed at least partially in a bore of the body at a first longitudinal axial position relative to the body when pressure of fluid acting on the base is below a threshold pressure. The first biasing element is disposed between a base of the piston and a shoulder of the body, wherein a force of the first biasing element is overcome by pressure of fluid acting on the base at or above the threshold pressure, thereby allowing the piston to move to a second longitudinal axial position. The rotatable disc has a first rotational position when the piston is in the first axial position. The second biasing element is configured to urge the disc to a second rotational position when the piston is in the second axial position.

A wireless pressure sensor of a swimming pool filtration system includes a pressure switch, a communication unit, an energy storage element, a memory for recording multiple consecutive measurements, and an analysis device. The analysis device is configured to detect a critical situation if one or more current measurements exceed a critical value and/or if the pressure difference between a current measurement and the last measurement recorded in the memory is greater than a predetermined value. The communication unit is configured to send, upon expiration of a transmission period, the measurements stored in said memory. The communication unit also is configured to transmit the measurements stored in the memory before the expiration of the transmission period when the analysis device detects a critical situation.

A wireless pressure sensor of a swimming pool filtration system includes a pressure switch, a communication unit, an energy storage element, a memory for recording multiple consecutive measurements, and an analysis device. The analysis device is configured to detect a critical situation if one or more current measurements exceed a critical value and/or if the pressure difference between a current measurement and the last measurement recorded in the memory is greater than a predetermined value. The communication unit is configured to send, upon expiration of a transmission period, the measurements stored in said memory. The communication unit also is configured to transmit the measurements stored in the memory before the expiration of the transmission period when the analysis device detects a critical situation.

This present invention relates to a wireless pitot gauge having a pressure transducer or transmitter to record pressure readings and transmit the readings to an electronic device. The gauge attaches to a hose, pipe or conduit which connects to a water pump or inlet like a standpipe on a commercial building. The gauge has a pressure transducer and transmitter that transmits the pressure reading to an electronic device via a mobile application. The wireless pitot gauge of the present invention is useful to measure water flows from fire hose nozzles, fire hydrants, and other water-based systems.

This present invention relates to a wireless pitot gauge having a pressure transducer or transmitter to record pressure readings and transmit the readings to an electronic device. The gauge attaches to a hose, pipe or conduit which connects to a water pump or inlet like a standpipe on a commercial building. The gauge has a pressure transducer and transmitter that transmits the pressure reading to an electronic device via a mobile application. The wireless pitot gauge of the present invention is useful to measure water flows from fire hose nozzles, fire hydrants, and other water-based systems.

A pressure measuring device/system that is capable of measuring the pressures of multiple systems in an automobile, including fuel pressure, power steering, engine oil pressure, transmission oil pressure, compression, diesel compression, high pressure oil systems, and diesel fuel pressure, and is capable of displaying and/or recording the measured pressure values. An onboard digital display receives a series of signals from a transducer and displays the series of signals as at least one of a digital needle gauge and a live graph display, and selectively displays the series of signals in a chart with one axis of said chart comprising said signal and another axis of said chart comprising time.

A pressure measuring device/system that is capable of measuring the pressures of multiple systems in an automobile, including fuel pressure, power steering, engine oil pressure, transmission oil pressure, compression, diesel compression, high pressure oil systems, and diesel fuel pressure, and is capable of displaying and/or recording the measured pressure values. An onboard digital display receives a series of signals from a transducer and displays the series of signals as at least one of a digital needle gauge and a live graph display, and selectively displays the series of signals in a chart with one axis of said chart comprising said signal and another axis of said chart comprising time.