Digital Security Controls Ltd. 09LC171 Manuel D’Utilisation

 

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The LC-171 has a 90° top view PIR and MW detection pattern with over 18m detection distance 

(when installed at 1.2m above the ground surface). 

The LC-171 has an internal rotating housing (which includes the 2 PIR elements and the MW) 

that can be adjusted horizontally, so its 90° coverage may vary between 0° and 180°.  

 

 

 

 

 

 

 

The LC-171 can differentiate between pets and human bodies and alert accordingly by  

having microwave movement detection combined with two PIR detection beams:. 

A. Lower PIR element which is fixed to 18m range and 60cm above ground level which helps 

avoiding pet detection over the entire area. 

B. Upper PIR element which has adaptive range between 3 and 18m. 

An intrusion is defined by both PIR detection beams being crossed and a Microwave detection 

occurring, causing an alarm. 

No alarm will be generated if only one of the PIR detection beams is crossed and microwave 

detection occurs. 

Detection area 

Lower PIR element detection pattern 
Fixed to 18m range 

Microwave detection pattern 

Detection 

No Detection

No pet detection in 
all protected area 

Upper PIR element detection pattern 
Adjustable between 3m and 18m (10 ft to 59 ft)