Cut Sheet

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WATTSTOPPER
®
SENSORS
Description
The PW-203 passive infrared (PIR) multi-way wall switch sensor
turns lights ON and OFF based on occupancy. It contains two
relays for controlling two independent lighting loads and a
variety of features.
Operation
The PW-203 replaces existing wall switches and fits in a
single gang box. Each of the PW-203’s relays can control a
separate lighting load. It uses advanced PIR technology to
detect occupancy and turn the first relay ON. Once the space is
vacated and the time delay elapses, lights automatically turn
OFF. Dual ON/OFF buttons allow the user to manually switch
each of the loads, and each relay can be set for Manual-ON or
Auto-ON. The PW-203 features a built-in light level sensor that
controls the second relay. If adequate daylight is present, the
sensor will hold the second relay off until daylight levels drop
for increased energy savings.
Multi-way Control
Multiple PW-203 sensors may be connected for control from
up to four locations, and provide true multi-way functionality.
When Manual-ON mode is active, an occupant must press an
ON/OFF button on one of the sensors to turn a load ON. When
Auto-ON mode is active, the load will automatically turn ON
when occupancy is detected by one of the sensors. Lights will
remain ON as long as occupancy is detected. The last sensor
to detect occupancy will turn the loads OFF after the time delay
has elapsed. In either operating mode, an occupant may turn
the load OFF manually.
Applications
The PW-203 sensor is well suited for spaces requiring bi-level
lighting control, or control of two independent loads, that have
multiple doorways or switch locations. Common applications
include small offices, small conference rooms and lunch/break
rooms.
PASSIVE INFRARED MULTIWAY DUAL RELAY
WALL SWITCH OCCUPANCY SENSOR
PW203
High sensitivity and dense coverage
for exceptional performance
Allows multi-way control from one
of up to four control locations
Defaults to Auto-ON operation for
greatest energy savings
Two relays for control of two
separate lighting loads
Selectable operation, walk-through, test
and presentation modes for increased
energy savings and convenience
Color-matched lens and low profile
for appealing design
OCCUPANCY & VACANCY
• Detection Signature Processing eliminates false triggers and
provides immunity to RFI and EMI
• Zero-crossing on both relays for long relay life
• Vandal resistant lens combines precise coverage with
durability
• Choice of Manual-ON or Auto-ON operation, selectable for
each relay
• Selectable walk-through mode turns lights off three minutes
after the room is initially occupied if no motion is detected
after the first 30 seconds
• Test mode allows quick and easy adjustments
• Selectable audible and/or visual alerts for impending shutoff
• In automatic mode, sensor returns automatically to Auto-ON
after lights are turned off manually; ideal for presentations
• LED indicates occupancy detection
• Optional light level sensing with simple setup
• Service mode allows sensor to operate as a service switch in
the unlikely event of a failure
• Sensor coverage tested to NEMA Guide Publication WD 7-2000
• Compatible with decorator wall plates
Features