NM CID ES-3 Practice Questions - New Mexico CID ES-3 Low Voltage Special Systems (Under 50 Volts) Examination Exam

A dual-technology motion detector typically combines PIR with microwave (or similar) so that:

Either technology alone will always trip to increase catch performance EOL supervision is no longer required The detector can operate without a power source Both technologies must detect motion before an alarm is sent, reducing many nuisance alarms

Correct Answer:

Both technologies must detect motion before an alarm is sent, reducing many nuisance alarms

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