W-500A ULTRASONIC OCCUP SENSOR
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Primary Spec Sheet
https://static.graybarcanada.com/Products/Lighting/Timers%2C%20Misc%20Lighting%20Ctls/WATW500A/Files/WATW500A_Files.pdf
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Primary Spec Sheet
https://static.graybarcanada.com/Products/Lighting/Timers, Misc Lighting Ctls/WATW500A/Files/WATW500A_Files.pdf
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Supporting Document
https://static.graybarcanada.com/Generic/legrand_synd/pdf/documents/5f2898a591054a5de7d24a2f6dd47636dcc0f8e2.pdf