User's Manual

4
3 Assembly description
The LC-171 is a robust detector which includes a large LED indicator that can be easily observed
from long distances and an optional buzzer to provide indication of intrusion.
Using the supplied mounting bracket, the LC-171 can be easily mounted to walls using mounting
screws and poles using the supplied metal bands.
The LC-171 is combined of three detection elements:
• Upper PIR element
• Lower PIR element
• Microwave element
• The upper PIR element has an adjustable detection height while the other two are fixed.
The following drawing shows all internal elements:
U
pp
er PIR element
Lower PIR element
Micro
wave element
LED
Terminal Connection Blocks
LED and Buzzer di
p
switches
Sensitivit
y
settin
g
Direction An
g
le Indicato
r
Ran
g
e settin
g
handle
Ran
g
e Indication
Tam
p
er switch
Bracket lockin
g
screw