In its armed state this device will trigger the alarm when it senses movement. The sensor for Zone 1 can be used as a doorbell when the system is disarmed. Egenskaber: include wall og ceiling mounting capabilities, an adjustable detection vinkel og easy batteri replacement. There are two operating modes : normal og dual detection. The dual detection mode requires the installation of two PIRs in such a way that their detection areas overlap. The main unit will only sound the alarm when both PIRs are triggered, which greatly reduces the risk of false alarm. Low-battery indication with yellow LED.
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