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A passive infrared sensor (PIR sensor) is an electronic sensor that measures infrared (IR) light radiating from objects in its field of view. They are most often used in PIR-based motion detectors . PIR sensors are commonly used in security alarms and automatic lighting applications.
Normally, light from the light source shoots straight across and misses the sensor. When smoke enters the chamber, it scatters the light, which then hits the sensor and triggers the alarm. Photoelectric smoke detectors typically respond faster to a fire in its early, smoldering stage, before the source of the fire bursts into flames.
An anti-hijack system is an electronic system fitted to motor vehicles to deter criminals from hijacking them. Although these types of systems are becoming more common on newer cars, they have not caused a decrease in insurance premiums as they are not as widely known as other more common anti-theft systems such as alarms or steering locks.
The kit includes both a kill switch and an alarm. Hyundai told Automotive News that the kit will be available at all of its 820 dealers in the U.S. and will take around two and a half hours to ...
Intelligent Light System is a headlamp beam control system introduced in 2006 on the Mercedes-Benz E-Class (W211) [154] which offers five different bi-xenon light functions, [155] each of which is suited to typical driving or weather conditions: Country mode; Motorway mode; Enhanced fog lamps; Active light function (Advanced front-lighting ...
The vast majority of hidden headlamps are on cars, however, there are a handful of vehicles included in the list that do not fit this category. These include motorcycles , buses and trains . Hidden headlamps have rarely been installed on vehicles since the turn of the millennium, with only low volume production vehicles being manufactured since ...
The last time pop-up headlamps appeared on a volume-production car was in 2004, when both the Lotus Esprit and Chevrolet Corvette (C5) ended production. [ 8 ] [ 9 ] Development of both projector beam headlamps such as those on the 1990 Nissan 300ZX (Z32) , and more efficient, bright LED headlamps has in practice, eliminated the need for hidden ...
Some manufacturers hide the backup lock behind a cover for styling. A push-button ignition switch in place of the immobilizer on a Mitsubishi RVR equipped with the Smart key. Vehicles with a smart-key system can disengage the immobilizer and activate the ignition without inserting a key in the ignition, provided the driver has the key inside ...