| http://www.w3.org/ns/prov#value | - Automotive security systems typically employ vibration sensors, glass breakage sensors, ultrasonic or microwave sensors, as well as triggers such as door, hood or trunk triggers, to detect unauthorized intrusion attempts and to activate alarm devices such as sirens or lights to warn off the intruder and call attention to the intrusion, and in most cases such system will also activate a relay or ot
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