Leviton PR180 is a single-pole or 3-way motion activated light switch.
Resources:
http://www.leviton.com/OA_HTML/ibeCCtpItmDspRte.jsp?item=452283§ion=10892&minisite=10026The green connects to bare ground wire.
The yellow-red is not used EXCEPT to replace 3-way switch. Cap off yellow-red wire when wiring single-pole.
Your single pole switch has two black wires.
One black wire is Hot from breaker, and the other black wire goes to Load.
Turn power on, and test each black wire to bare copper wire. Tester lights up on Hot wire.
Hot wire connects to PR180 black wire.
Load wire connects to RR180 red wire
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