A manual call point and optical beam smoke detector. The manual call point includes a housing, a plurality of components located within the housing including a mechanism operable to trigger an alarm, and a self-regulating heater. The self-regulating heater is configured to maintain a constant temperature within the housing. The optical beam smoke detector includes a housing having a window, a transmitter and/or a receiver located within the housing, and a heater located within the housing. The heater is configured to maintain a temperature difference between an interior of the housing and an exterior of the housing below a threshold temperature difference.

A detector assembly for a duct of a heating ventilation and air conditioning system includes an outer housing having at least one through hole formed therein, an inner sampling support receivable within a hollow interior of the outer housing, and at least one detector mounted to the inner sampling support. The at least one detector is axially aligned with the at least one through hole when the inner sampling support is installed within the hollow interior of the outer housing. The at least one detector is operable to sample air within the duct to detect a hazardous condition.

An optical detector device may receive a spectroscopic measurement from a multispectral sensor. The optical detector device may determine, based on the spectroscopic measurement, a particulate size of a particulate. The optical detector device may determine, based on the spectroscopic measurement, an identification of the particulate. The optical detector device may determine, based on the particulate size and the identification of the particulate, that an alert condition is satisfied. The optical detector device may trigger an alert based on determining that the alert condition is satisfied.

An automatic fire suppression system for use in extinguishing residential fires or engine compartment fires in a vehicle. The automatic fire suppression system in mountable on a ceiling or under a hood of the vehicle or above the vehicle's engine if located elsewhere. The automatic fire suppression system retains an extinguishing agent in an extinguishing agent reservoir. A detection component for detecting heat or smoke triggers the release of the extinguishing agent according to a preset heat level or smoke condition. Once released, the extinguishing agent is dispensed onto the fire by through a plurality of orifices in a distribution component to effectively suppress the fire.

A disclosure and claims to systems and methods for allowing rapid detection and display of an emergency condition using a plurality of specially-constructed multifunction sensors and display units, which allow building evacuation plans to be evaluated, modified, and transmitted to building occupants.

A disclosure and claims to systems and methods for allowing rapid detection and display of an emergency condition using a plurality of specially-constructed multifunction sensors and display units, which allow building evacuation plans to be evaluated, modified, and transmitted to building occupants.

An AFE chip for a smoke detector includes a DC/DC boost converter having a boost input, a boost output, and a boost upper power supply input. The boost input is coupled to a first pin that is adapted for coupling to a battery through an inductor and the boost output is coupled to a second pin. The DC/DC boost converter is configured to not switch when a voltage on the second pin is greater than a programmed boost voltage. A set of power regulator circuits have a power input, which is coupled to a third pin, and a power output. The third pin is adapted for receiving an input voltage, the power output is coupled to provide an internal voltage, and the set of power regulator circuits are further coupled to the boost upper power supply input.

An AFE chip for a smoke detector includes a DC/DC boost converter having a boost input, a boost output, and a boost upper power supply input. The boost input is coupled to a first pin that is adapted for coupling to a battery through an inductor and the boost output is coupled to a second pin. The DC/DC boost converter is configured to not switch when a voltage on the second pin is greater than a programmed boost voltage. A set of power regulator circuits have a power input, which is coupled to a third pin, and a power output. The third pin is adapted for receiving an input voltage, the power output is coupled to provide an internal voltage, and the set of power regulator circuits are further coupled to the boost upper power supply input.

The present invention relates to a gas measuring system for measuring the presence of a predetermined gas including a light source and a light receiver separated by a gas volume, the light source emitting light within a chosen range of wavelengths including characteristic absorption wavelengths of the gas to be measured and the light receiver being capable of detecting light in said wavelength range and the system including a spectrum analyzer and a storage means for storing the specific absorption wavelengths of the gas thus to recognize a gas absorbing at said specific wavelengths. The storage means also includes specific absorption wavelengths characterizing at least one other material having absorption wavelengths partially overlapping the absorption wavelengths of said gas, and thus detect the material in the volume. The system includes an analyzer unit being adapted to detect said other material from the gas measurements so as to distinguish between said material and gas in the volume, and to provide a measure of said gas.

A fire monitoring system and a container-type data center system. The fire monitoring system includes a filtering apparatus, a detection apparatus, and a control apparatus. The filtering apparatus includes a first stage filter and a second stage filter.