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I used my own mains adaptors a separate one for each, as T & R will be about 20-30ft apart & in fact the T's is 12v 2A & the R's 12v 3.3A.
Forgive my ignorance but, does this sort of Amperage would be adequate?
I have no idea what the ripple bit means.
The other Chinese beam I installed yrs...
Hi,
I purchased this ALARM BEAM DETECTOR below from eBay but does not work
when 12v powers both Tra.& Rec.
I powered another make (Zin Zan) 8 years ago & still works OK today.
In the attached image 5 I connected a 12v 2A adaptor & a piezo buzzer but it does not work. The buzzer when powered...
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