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Product Description
The Optex TD-20U is an Indoor/Outdoor Sensor Transmitter. Uses passive infrared to detect motion and send RF signals to receivers.
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Hard to beat., Submitted by Tom Burke on 9/30/2009
Have had this unit located in colorado on Utility pole facing South West for 3 years. It has worked perfectly with the exception of the plastic lens which continues to crack. I have to keep using Epoxy to repair. There are no replacements for the lens. Must replace entire unit.