PIR RELAY TIMER
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Additional Information
This circuit is designed for use with the 12V DC
Honeywell IS-215T passive infrared motion sensor which we sell in the
REUK Shop. It is handbuilt in the UK using top quality electronic components and it has been designed to be very easy to use.
When the PIR sensor detects motion it sends out a signal which triggers this circuit. The length of time the
relay stays closed
after the PIR sensor signal has finished is manually-adjustable from 5 seconds to around 75 seconds.
Use a small screwdriver or the point of a very sharp knife to rotate the timer adjustment:
turn clockwise to reduce the time from 75 to 5 seconds.
turn anti-clockwise to increase the time from 5 to 75 seconds.
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The connection labelled
PIR IN above originates as the
PIR Sensor Signal shown in the diagram below of the connections within the PIR sensor unit:
Full circuit diagrams for this device are available in our article
PIR Sensor Circuits if you would prefer to solder your own together. We are happy to supply the components required - price on application.
NEW If you are planning a circuit containing
two PIR sensors (for example one at the front and one at the rear of a property), this circuit is not suitable. Instead please read our article
Multiple PIR Sensor Circuits and consider purchasing our
Double PIR Relay Timer.
Further Information
If you have any questions about the operation of this circuit and our
12 Volt DC PIR Sensors please contact
neil@reuk.co.uk directly by email.
Related REUK.co.uk Articles
Find out how to integrate PIR (passive infra red) sensors into renewable energy applications
Find out more about using PIR sensors within renewable energy applications
Connecting more than one PIR sensors in a circuit
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