An infrastructure monitoring assembly includes a nozzle cap defining an internal cavity; an antenna positioned at least partially external to the internal cavity; and the antenna covered with a non-metallic material. An infrastructure monitoring assembly includes a nozzle cap defining a first end and a second end, the first end defining a threaded bore configured to mount on a nozzle of a fire hydrant; a cover coupled to the nozzle cap opposite from the first end; an enclosure positioned at least partially between the cover and the first end, the enclosure at least partially defining a cavity; a monitoring device positioned within the cavity; and an antenna positioned between the cover and the first end of the nozzle cap, the antenna connected in electrical communication with the monitoring device, the antenna covered by a non-metallic material.

An infrastructure monitoring assembly includes a nozzle cap defining an internal cavity; an antenna positioned at least partially external to the internal cavity; and the antenna covered with a non-metallic material. An infrastructure monitoring assembly includes a nozzle cap defining a first end and a second end, the first end defining a threaded bore configured to mount on a nozzle of a fire hydrant; a cover coupled to the nozzle cap opposite from the first end; an enclosure positioned at least partially between the cover and the first end, the enclosure at least partially defining a cavity; a monitoring device positioned within the cavity; and an antenna positioned between the cover and the first end of the nozzle cap, the antenna connected in electrical communication with the monitoring device, the antenna covered by a non-metallic material.

Liquid level sensing apparatus are disclosed. An example liquid level sensing apparatus includes a cannula defining a body having a tip and an access channel. The tip to pierce a container, where the cannula is to be at least partially positioned in the container when the tip pierces the container. A probe is to be positioned in the access channel. A signal source is to electrically energize the probe and the cannula to cause the probe to emit a first signal and cause the cannula to emit a second signal.

An infrastructure monitoring assembly includes a housing mountable on a fire hydrant of an infrastructure system; and a sensor coupled to the housing, the sensor configured to sense at least one condition of a fluid within the infrastructure system. An infrastructure monitoring system includes a fire hydrant of an infrastructure system; a housing mountable on the fire hydrant of the infrastructure system; and a sensor coupled to the housing, the sensor configured to sense at least one condition of a fluid within the infrastructure system.

An infrastructure monitoring assembly includes a housing mountable on a fire hydrant of an infrastructure system; and a sensor coupled to the housing, the sensor configured to sense at least one condition of a fluid within the infrastructure system. An infrastructure monitoring system includes a fire hydrant of an infrastructure system; a housing mountable on the fire hydrant of the infrastructure system; and a sensor coupled to the housing, the sensor configured to sense at least one condition of a fluid within the infrastructure system.

A handrail mountable wireless components installation apparatus and related method of installation are disclosed. The apparatus/method includes a shell having two parts, a wireless components housing and a lid; and a chassis for the fixedly but detachable mounting within the shell of the wireless electronic components necessary to provide a WiFi signal, as for example a router and an antenna, the chassis equipped with two sets of brackets. One set of brackets provides the anchoring means for the fastening of the lid onto the housing. The second set of brackets allows the enclosure to be mounted on the handrail. Optionally, the chassis is provided with a mounting plate for the mounting of a router and an opening capable of accommodating an antenna without impeding the flow of the antenna signal. Optionally, the weather resistant handrail mountable wireless components installation apparatus also comprises a gasket.

A portable interface system including an interface device, in particular a sensor device, and a base part, wherein the base part includes an attachment area for the interface device and a retraction device, wherein the retraction device is attached to the interface device and is designed to move the interface device into a predefined holding position in the attachment area, wherein the interface device is detachably fixed without tools in the holding position in the attachment area.

A radio-frequency module includes: a module substrate having a major face; a first circuit component and a second circuit component that are disposed over the major face; a resin component that covers the first circuit component and the second circuit component; a metal shield layer that covers a surface of the resin component; a metal shield plate that is disposed over the major face and, with the module substrate seen in plan view, located between the first circuit component and the second circuit component; and a via-conductor disposed in the module substrate and set to a ground potential. The metal shield plate is in contact with the metal shield layer, and connected at the major face with the via-conductor. The metal shield plate has a thickness greater than a thickness of the metal shield layer and less than or equal to an outside diameter (of the via-conductor.

A radio-frequency module includes: a module substrate having a major face; a first circuit component and a second circuit component that are disposed over the major face; a resin component that covers the first circuit component and the second circuit component; a metal shield layer that covers a surface of the resin component; a metal shield plate that is disposed over the major face and, with the module substrate seen in plan view, located between the first circuit component and the second circuit component; and a via-conductor disposed in the module substrate and set to a ground potential. The metal shield plate is in contact with the metal shield layer, and connected at the major face with the via-conductor. The metal shield plate has a thickness greater than a thickness of the metal shield layer and less than or equal to an outside diameter (of the via-conductor.

A multi-core/single-core conversion module is disclosed. The multi-core/single-core conversion module includes a housing including a first end, a second end and a lateral wall defining an inner space between the first end and the second end, a first adapter attached to the first end of the housing, two or more second adapters attached to the second end of the housing, a multi-core optical connector inserted into the first adapter from the inner space of the housing, a plurality of single-core optical connectors respectively inserted into the second adapters from the inner space of the housing, and a plurality of optical fibers connecting the multi-core optical connector to the plurality of single-core optical connectors with each other. The second adapters are arranged on the second end across a plurality of tiers. An opening can be formed by a part of the lateral wall being detached.