Motion sensor and alarm

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pontifex

Lifer
Dec 5, 2000
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Looking for small motion sensors that I can place around the driveway and to my deck that will send an alarm or chime to a unit in the house.

Everything I see on amazon either has an alarm on the sensor which won't help me at all, or the sensor is huge.

Looking for something discrete that people won't readily notice.
 

lupi

Lifer
Apr 8, 2001
32,539
260
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you're not going to get discrete out of a consumer grade product.
 

jaedaliu

Platinum Member
Feb 25, 2005
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It doesn't seem overly complicated. I would think a spy gadget shop would have what you want. If not, you could piece something together. A breadboard, ultrasonic sensor, and some type of wireless communication shouldn't be super complicated. Powering it, though, might be one of the more annoying parts.
 

pontifex

Lifer
Dec 5, 2000
43,804
46
91
that sensor is as big as an iphone which is about 90% larger than what he wants.

I also don't have an Iphone.

Although a sensor the size and thickness of an iphone, just in black, brown, or dark gray might be ok.
 

pontifex

Lifer
Dec 5, 2000
43,804
46
91

way more complicated than I want.

I just want 4 or 5 small motion sensors and 1 receiver that gives out a chime or something to alert me when someone or something crosses the path of the sensor.

There's plenty of products out there that do it but most seem too conspicuous (as in large size or bright white in color) or don't have a receiver (the alarm is also on the sensor).
 

WilliamM2

Platinum Member
Jun 14, 2012
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