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PIR sensor is used to detect any temperature difference caused by
human body movement against a cold background.
The pool side alarm unit has a PIR sensor designed to monitor the pool
entrance or other area an intruder might pass before they enter the pool.
To turn on the PIR sensor, turn the knob to the right. When this sensor is
first turned on, it needs 40 seconds to warm up the sensor and control
circuitry. During this 40 seconds, the unit will give a beep every 5
seconds and at the end of the warm up cycle, it will give a long beep.
The PIR sensor starts to function.
To turn the PIR sensor off, push the blue button to the right and then
turn the knob to the left.
The PIR sensor covers a range of 150 degrees and up to 24 feet.
Because PIR sensor detects temperature difference, the range of
detection may be subject to ambient temperature as well as the
surrounding environment.
Rotate the head so that the sensor points to the pool entrance area or
the area you feel to be most effective in sensing someone entering the
pool area.
PIR (Passive Infra Red) SENSOR PHOTO 24