Your search for "Watt Stopper RS Series Passive Infrared {PRI} Application-Specific Wall Switch Vacancy Sensors" revealed the following:
Wattstopper PW-100-24 PIR Wall Switch Occupancy Sensor, 24V
Regular price
$10493
$104.93
Save $83.94
Wattstopper WS-301 PIR Wall Switch Occupancy Sensor, 120/277V
Regular price
$6341
$63.41
Save $50.72