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A Kidde plug-in carbon monoxide detector. A carbon monoxide detector or CO detector is a device that detects the presence of the carbon monoxide (CO) gas to prevent carbon monoxide poisoning. In the late 1990s, Underwriters Laboratories changed the definition of a single station CO detector with a sound device to carbon monoxide (CO) alarm.
Not too long later in March 2018, Kidde recalled their 2 Dual-Sensor Smoke Detector models, PI9010 and the PI2010. [32] The reason for the recall was a yellow cap left on one of the sensors that could fail to alert buyers of the alarm of a possible fire. 452,000 units in the US and about 40,000 units in Canada were affected in the recall.
For indoor human occupancy counting [12] [13] For HVAC applications, CO 2 sensors can be used to monitor the quality of air and the tailored need for fresh air, respectively. Measuring CO 2 levels indirectly determines how many people are in a room, and ventilation can be adjusted accordingly. See demand controlled ventilation (DCV). [14]
iOS 13 is the thirteenth major release of the iOS mobile operating system developed by Apple for the iPhone, iPod Touch and HomePod. The successor to iOS 12 , it was announced at the company's Worldwide Developers Conference (WWDC) on June 3, 2019, and released on September 19, 2019.
An aspirating smoke detector (ASD) is a system used in active fire protection, consisting of a central detection unit which draws air through a network of pipes to detect smoke. [1] The sampling chamber is based on a nephelometer that detects the presence of smoke particles suspended in air by detecting the light scattered by them in the chamber.
Apple, Inc. introduced Crash Detection on the Apple Watch Series 8, Ultra, and second-generation SE and the iPhone 14 series at an event on September 7, 2022. This came three years later than Google, who had introduced the Car Crash Detection feature on its Pixel 3 smartphone in 2019. [1]
Smoke detector mounted on a ceiling. A smoke detector is a device that senses smoke, typically as an indicator of fire.Smoke detectors/alarms are usually housed in plastic enclosures, typically shaped like a disk about 125 millimetres (5 in) in diameter and 25 millimetres (1 in) thick, but shape and size vary.
Colorimetric capnography is a qualitative measurement method that detects the presence of carbon dioxide (CO2, a relatively acidic gas) in a given gaseous environment. From a medical perspective, the method is usually applied by exposing litmus paper/film to an environment containing a patient's airway gases (i.e. placing it into their breathing circuit/airway circuit), where it will then ...