

Optex RC-20U 3 Channel Receiver Chimebox w/ Relay
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Don Ly
Greater than one weekworking good for my bussiness
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FarmerDave
> 3 dayOh, it works great but after a while of the sheep passing by it one at a time it gets kind of old.
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Ann Bennett
> 3 dayExcellent product
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edward
> 3 dayput it by your driveway, back doors, near your car in the driveway and it will wake you up in the night to let you know something is moving around nearby. The batteries in the outdoor sensor last well over a year, though out all temps.
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Ed Passi
> 3 dayWorks. Just had to follow the instructions, since this required programming the receiver with each specific sensor unit to enable its operation. As in past use, I also painted my own drab camo coloring on the sensor unit to make it “hide” in the front yard foliage by my driveway where I park the unit (photo). It’d be nice if they just came in that color already. That last one I had lasted almost a decade despite permanent exposure to sun and rain outdoors (along with getting kicked around occasionally by night animals).
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Stacy S
> 3 dayWe own storage units and live next door. This is wired to ding whenever someone drives into the business so we can take a look at who has come onto the property. Works perfectly.
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JGandy
> 3 dayGot it for work, and it works great.
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Chris
06-04-2025We use these to signal that help is needed in different rooms in our facility, they always work well. The manufacturer was quick to give advice on a technical question too.
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Ian José
> 3 dayEasy to set up and very effective.
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Douglas Carr
> 3 dayGood product good company