Abstract: A portable monitoring unit for personnel working in hazardous environments, including a coupling to which an auxiliary unit can be structurally coupled; a motion sensor; an alert generator which is configured to generate an alert when motion is not detected for a period of time; and a power interface arranged to receive power for the portable monitoring unit from a power interface of the auxiliary unit when the auxiliary unit is structurally coupled to the portable monitoring unit.

Abstract: A portable monitoring unit for personnel working in hazardous environments, comprising a coupling to which an auxiliary unit can be structurally coupled; a motion sensor; an alert generator which is configured to generate an alert when motion is not detected for a period of time; and a power interface arranged to receive power for the portable monitoring unit from a power interface of the auxiliary unit when the auxiliary unit is structurally coupled to the portable monitoring unit.

Abstract: Housing (10) of a closed circuit breathing apparatus (200), includes a primary wall (20) covering a component space (30) for receiving breathing components (210) of the closed circuit breathing apparatus (200). A secondary wall (40) covers a device space (50) at least partly inside of the component space (30). The device space (50) is sealed by the secondary wall (40) against the component space (30). The device space (50) receives an electric device (100). The device space (50) includes a device opening (52) to the surrounding of the housing (10). The device opening (52) is for inserting the electric device (100).

Abstract: An LED adapter to retrofit non-LED light fixtures to accept LED lights without electrical rewiring. The LED adapter includes a multi-use base plug that is configured to connect to the socket on the non-LED light fixture and a universal LED plug configured to connect to the socket on an LED light. The multi-use base plug may be a four-pin square base, a two-pin (aligned or off-set) square base, a two-pin tombstone base, a two-pin oval base, or a threaded base. The adapter may also include a power regulator disposed between the universal LED plug and the multi-use base plug. The power regulator includes one or more resistor to adjust the current or voltage supplied by the non-LED light fixture so as to be compatible with the LED light fixture.

Abstract: An LED adapter to retrofit non-LED light fixtures to accept LED lights without electrical rewiring. The LED adapter includes a multi-use base plug that is configured to connect to the socket on the non-LED light fixture and a universal LED plug configured to connect to the socket on an LED light. The multi-use base plug may be a four-pin square base, a two-pin (aligned or off-set) square base, a two-pin tombstone base, a two-pin oval base, or a threaded base. The adapter may also include a power regulator disposed between the universal LED plug and the multi-use base plug. The power regulator includes one or more resistor to adjust the current or voltage supplied by the non-LED light fixture so as to be compatible with the LED light fixture.

Abstract: An LED adapter to retrofit non-LED light fixtures to accept LED lights without electrical rewiring. The LED adapter includes a multi-use base plug that is configured to connect to the socket on the non-LED light fixture and a universal LED plug configured to connect to the socket on an LED light. The multi-use base plug may be a four-pin square base, a two-pin (aligned or off-set) square base, a two-pin tombstone base, a two-pin oval base, or a threaded base. The adapter may also include a power regulator disposed between the universal LED plug and the multi-use base plug. The power regulator includes one or more resistor to adjust the current or voltage supplied by the non-LED light fixture so as to be compatible with the LED light fixture.

Abstract: A retrofit panel for a ceiling-mounted light fixture. The panel may comprise a lens, screen, diffuser, or LED light screen. Anchor line assemblies and retainer arm assemblies extend from a perimeter guide track from which they extend. The anchor line assemblies engage one or more ports on the light fixture housing and hold the retrofit panel a maximum anchor distance from the housing. The retainer arm assemblies engage one or more openings on the light fixture housing and hold the retrofit panel flush with the light fixture housing or the ceiling if recess mounted. The retrofit panel can be easily installed in existing ceiling mounted light fixtures with minimal demolition.

Abstract: A retrofit panel for a ceiling-mounted light fixture. The panel may comprise a lens, screen, diffuser, or LED light screen. Anchor line assemblies and retainer arm assemblies extend from a perimeter guide track from which they extend. The anchor line assemblies engage one or more ports on the light fixture housing and hold the retrofit panel a maximum anchor distance from the housing. The retainer arm assemblies engage one or more openings on the light fixture housing and hold the retrofit panel flush with the light fixture housing or the ceiling if recess mounted. The retrofit panel can be easily installed in existing ceiling mounted light fixtures with minimal demolition.

Abstract: A retrofit panel for a ceiling-mounted light fixture. The panel may comprise a lens, screen, diffuser, or LED light screen. Anchor line assemblies and retainer arm assemblies extend from a perimeter guide track from which they extend. The anchor line assemblies engage one or more ports on the light fixture housing and hold the retrofit panel a maximum anchor distance from the housing. The retainer arm assemblies engage one or more openings on the light fixture housing and hold the retrofit panel flush with the light fixture housing or the ceiling if recess mounted. The retrofit panel can be easily installed in existing ceiling mounted light fixtures with minimal demolition.

Abstract: There is disclosed self-contained breathing apparatus equipment 20 comprising a harness 22, 62 comprising a structural member 26, 28, 64 for supporting or housing a cylinder of breathable gas 40. The equipment comprises a visual alert generator 54 comprising a light source 60, 76 mounted to the structural member, the visual alert generator having a plurality of display modes, a wireless receiver 50 arranged to receive telemetry data transmitted from a central control unit 16, and a control module 52 arranged to receive status data, the status data including the telemetry data. The control module 52 is arranged to control the display mode of the visual alert generator based on the received status data.