Installation of the PIR Sensor
PLEASE NOTE
The PIR sensor should be installed at a height of 1.8 - 2.2 metres from the ground and its
range is horizontal 110º and vertical 30º .Additionally, the PIR sensor should be within
20 metres of the GSM Detector Module (see fig 1)
1. Find a suitable location for the PIR Sensor and ensure that the sensor is
mounted on a stable structure.
2. When installing the receiver, take care to position the receiver out of direct sunlight as
this will reduce the sensitivity.
3. Ensure the sensors line of sight is free from false alarm sources such as bushes, trees,
etc. Pay attention to these as they may change seasonally.
4. It is important to have the correct power supply to operate this device successfully. You
will need a 12 volt 2 Amp supply or 12 volt battery. You can purchase both of these from
our website
www.gsm-activate.co.uk
5. Now you have the transmitter and receiver fitted to the location, you can carry out
alignment. You will now need to power the unit ON.
6. Alignment of the infrared beams. There are two adjustments, left and right and up and
down. The photo below should give you an indication of how to do this.
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