Can anyone sugest an infared beam detector.
It is for outside use.
Transmitter and receiver need to be able to sit within the space of a house brick.
Only needs an output to sound a bell or such.
Beam distance is only 4 meters.
Would prefer hard wired over wireless.
Thanks in advance.
It is for outside use.
Transmitter and receiver need to be able to sit within the space of a house brick.
Only needs an output to sound a bell or such.
Beam distance is only 4 meters.
Would prefer hard wired over wireless.
Thanks in advance.