Abstract: Various example embodiments described herein relate to an electrochemical gas sensor. The electrochemical gas sensor can include a sensor cap having one or more solid features disposed on a surface of the sensor cap. The electrochemical gas sensor can include a counter electrode configured to generate a gas during use of the electrochemical gas sensor. The electrochemical gas sensor can include a vent assembly adapted to release at least a portion of the gas generated at the counter electrode out from the electrochemical gas sensor. The vent assembly can include a vent conduit and a vent membrane that defines a passage for the gas to flow from an extended portion of the counter electrode, to the vent conduit, via the vent membrane, so as to be vented from the electrochemical gas sensor.

Abstract: Various example embodiments described herein relate to an electrochemical gas sensor. The electrochemical gas sensor can include a sensor cap having one or more solid features disposed on a surface of the sensor cap. The electrochemical gas sensor can include a counter electrode configured to generate a gas during use of the electrochemical gas sensor. The electrochemical gas sensor can include a vent assembly adapted to release at least a portion of the gas generated at the counter electrode out from the electrochemical gas sensor. The vent assembly can include a vent conduit and a vent membrane that defines a passage for the gas to flow from an extended portion of the counter electrode, to the vent conduit, via the vent membrane, so as to be vented from the electrochemical gas sensor.

Abstract: A rodent trap comprising a trigger arranged to be triggered by a rodent, a kill mechanism arranged to kill a rodent in response to the trigger being triggered by the rodent, a trapdoor positioned adjacent to the kill mechanism, having a closed position and an open position, and a storage area positioned on the other side of the trapdoor to the kill mechanism. The rodent trap is arranged such that when a rodent is killed by the kill mechanism, the rodent corpse passes through the trapdoor into the storage area.

Abstract: An oxygen sensor comprises a housing defining an interior space, a sensing electrode, a reference electrode, a counter electrode, a separator retaining an electrolyte, and a chamber within the housing. The retained electrolyte provides ionically conductive pathways between each of the sensing electrode, the reference electrode, and the counter electrode within the housing, and the chamber contains the sensing electrode. The chamber comprises an opening, and the separator extends into the chamber and substantially fills the opening.

Abstract: Embodiments of the disclosure include an electrochemical sensor comprising a housing defining a reservoir; a sensing electrode; a counter electrode; at least one separator retaining an electrolyte, wherein the electrolyte provides an ionically conductive pathway between each of the sensing electrode and the counter electrode within the housing; and a plurality of channels located on the interior of the reservoir, operable to transport electrolyte from the reservoir into the separator.

Abstract: Various example embodiments described herein relate to an electrochemical gas sensor. The electrochemical gas sensor can include a sensor cap having one or more solid features disposed on a surface of the sensor cap. The electrochemical gas sensor can include a counter electrode configured to generate a gas during use of the electrochemical gas sensor. The electrochemical gas sensor can include a vent assembly adapted to release at least a portion of the gas generated at the counter electrode out from the electrochemical gas sensor. The vent assembly can include a vent conduit and a vent membrane that defines a passage for the gas to flow from an extended portion of the counter electrode, to the vent conduit, via the vent membrane, so as to be vented from the electrochemical gas sensor.

Abstract: An oxygen sensor comprises a housing defining an interior space, a sensing electrode, a reference electrode, a counter electrode, a separator retaining an electrolyte, and a chamber within the housing. The retained electrolyte provides ionically conductive pathways between each of the sensing electrode, the reference electrode, and the counter electrode within the housing, and the chamber contains the sensing electrode. The chamber comprises an opening, and the separator extends into the chamber and substantially fills the opening.

Abstract: Embodiments of the disclosure include an electrochemical sensor comprising a housing defining an interior space; a sensing electrode; a counter electrode; and a separator retaining an electrolyte, wherein the electrolyte provides an ionically conductive pathway between each of the sensing electrode and the counter electrode within the housing, wherein the electrodes are orientated in a common plane, the separator contacts each of the electrodes, and the housing comprises at least one breather slot located between the interior space and the separator.

Abstract: Embodiments of the disclosure include an electrochemical sensor comprising a housing defining an interior space; a sensing electrode; a counter electrode; and a separator retaining an electrolyte, wherein the electrolyte provides an ionically conductive pathway between each of the sensing electrode and the counter electrode within the housing, wherein the electrodes are orientated in a common plane, the separator contacts each of the electrodes, the separator comprises a variety of geometrical features, including tabs, thinned portions, cut-outs, and rings, and the separator comprises variations in compression, density, and surface area.

Abstract: Embodiments of the disclosure include an electrochemical sensor comprising a housing defining an interior space; a sensing electrode; a counter electrode; and an electrical contact; wherein at least one of the sensing electrode or the counter electrode comprises a contact portion, wherein the contact portion is biased into contact with and electrically coupled to the electrical contact, and wherein a compression on the contact portion is different from a compression on the remaining body of the electrode.

Abstract: Embodiments of the disclosure include an electrochemical sensor comprising a housing defining a reservoir; a sensing electrode; a counter electrode; at least one separator retaining an electrolyte, wherein the electrolyte provides an ionically conductive pathway between each of the sensing electrode and the counter electrode within the housing; and a plurality of channels located on the interior of the reservoir, operable to transport electrolyte from the reservoir into the separator.

Abstract: A monitor is disclosed for monitoring an atmosphere for the presence of a target gas. The monitor includes an electrical gas sensor having a working (sensing) electrode and a counter electrode, an operational amplifier connected between the sensor electrodes, a detector, and a circuit. The sensor provides a current between the electrodes that is indicative of the amount of a target gas in the atmosphere. The operational amplifier generates an output signal according to the current flowing between the terminals where the output signal is indicative of the amount of target gas in the atmosphere. The detector detects when the current flowing between the sensor electrodes exceeds a predetermined threshold. The circuit restricts the potential difference between the sensor electrodes when the current between the terminals exceeds the predetermined threshold by supplying additional current or removing current from the working sensor electrode.

Abstract: A monitor is disclosed for monitoring an atmosphere for the presence of a target gas, the monitor comprising:

Abstract: A fresh water storage apparatus for providing an emergency supply of fresh water. The fresh water storage apparatus includes one or more tanks having a first end and,a second end; and also includes support members upon which the one or more tanks are mounted; and further includes a water inlet assembly being mounted to and extending into the one or more tanks; and also includes a water outlet assembly being mounted to and extending into said at least one tank; and further includes a vent assembly being mounted upon and extending into the one or more tanks through a top thereof.