When the detector indicator flashes
LED flashes once: A signal is detected, and the detector sends a signal to
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the alarm unit.
LED con nuously on: Low-voltage indica on, please change the ba ery as
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soon as possible.
Advanced features
The Tiiwee PIR sensor is equipped with some addi onal features to allow you
to adjust the device to your specific needs. To access these func ons, remove
the screw at the top of the sensor. Then separate the two parts (front and back
piece) by using an appropriate device (screwdriver, i.e.). Now you can see the
circuit board with the two switches.
1. The Indicator light can be switched off to save ba ery power ("Led off"
posi on). Off course, in this mode, an alarm signal will s ll be sent to the
Alarm Unit or the PIR Mo on Sensor Alarm.
low ba ery indica on is switched off in this se ng.
2. A wai ng me of 5 minutes between detec ons can be set saving ba ery
power ("5 Min" or "5s" switch). Use the 5-minute wai ng period when your
PIR sensor is meant to result in a loud siren alarm. We do not advise to use
this mode in combina on with the doorbell-sound se ng on your Alarm unit.
Se ngs
The factory se ngs are "5s" and "Led On". The sensor will respect a 5-seconds
wai ng me between 2 signals and that the LED indicator light will always flash
if a movement is detected. These are the most commonly used se ngs.
However, please note that the
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1. If both switches are set to the ON posi on, as shown in picture 1, the LED will
flash each me a movement is detected. A er each signal, a wai ng me of 5
seconds is set as a standard to allow a person to pass the detector without
triggering a signal con nuously.
2. If the top switch is set to "Off", the detector will respect a 5-minute delay
before it will become ac ve again. This is a power saving mode. A doorbell-sound
sound se ng on the Alarm unit is not advised with this delay.
3. If the lower switch is set to "Off", the Led light will not flash each me a
signal is detected. This se ng saves ba ery power.
4. If both switches are in the "Off" posi on, as shown in Figure 2, the PIR sensor
will respect a 5-minute interval between 2 different signals, nor will the LED
window flash.
Low-voltage Reminder Func on: The indicator light will be con nuously on
when the voltage of the PIR is lower than 2.4V unless its light has been switched
off by se ng the internal switches.
Detec on Range Characteris cs
Top View
Side View
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