5
Model 850 Operation
Turning ON
• Turn the Model 850
ON
by rotating the
ON/OFF &
Sensitivity Adjust Control
clockwise until a click is heard.
• Allow approximately three (3) minutes for the sensor to
attain operating temperature and stabilize.
• A
Mute switch
is located on the side of the detector and
can be switched
ON
to silence the audio.
Mute
Switch
ON/OFF &
Sensitivity Adjust
Control