Wall Switch Sensors
The SENSORWORX family of wall switch occupancy sensors provides a simple yet cost-effective lighting control solution for many retrofit applications. Designed with contractors in mind, the SENSORWORX wall switch sensor is significantly shallower than typical sensors, resulting in less crowded wall boxes. Additionally, versatile wiring enables usage with or without a neutral and allows reversal of line and load connections. SENSORWORX products utilize the latest passive infrared technology and digital signal processing techniques to provide unmatched motion detection performance. These units are also available with an integrated microphone to provide overlapping passive acoustic occupancy detection for rooms with obstructions or where occupant motion is limited.
Sensors detect movement in the infrared energy that radiates from occupants as they move within the devices field-of-view. Once occupancy is identified, the sensor’s internal relay switches power on to the connected lighting. Units can also be configured to operate in Vacancy Mode (e.g., require lights be manually switched on). Once lights are on and if equipped with passive dual technology (PIR/Acoustic), the unit’s microphone is enabled to further enhance detection. An internal timer is set to keep lights on during brief periods of inactivity, and is reset every time occupancy is signaled by either the passive infrared or acoustic detection technologies. Ambient daylight detection can also be enabled in equipped units so that lights are held off in rooms with sufficient light contribution from windows or skylights.
A wall switch sensor is typically used to retrofit an existing wall switch in a small room or enclosed space. A Passive Infrared (PIR) only sensor is sufficient for spaces where line of site is maintained and occupants are periodically moving (e.g., copy rooms, storage rooms). Dual technology sensors are necessary where occupants may be partially blocked from the sensor’s direct view or where they may be stationary (e.g., private offices or restrooms with stalls).
Restroom with Stalls
Small Meeting Room
Features / Wall Switch Sensors
Interchangeable Line & Load Wires –
Impossible to Wire Backwards
Accommodates Neutral (3-Wire)
and No-Neutral (2-Wire) Installation
Electronically Timed Switching
Ensures Long Relay Life
Compatible with LED, Fluorescent
and Incandescent Lighting
Meets NEC Guidelines Regarding
Enclosure is 25-40% Shallower than
Other Sensors (< 1” depth into wallbox)
Unique Bat-Wing Shaped Lens Provides
Enhanced Peripheral Detection
Self-Grounding Mounting Strap
Modern Look and Intuitive
Rugged Vandal Resistant Lens
Settings are Adjustable Without Removing
Wall-To-Wall Passive Infrared
Small Motion Detection
Passive Acoustic Detection (Optional) –
Prevents False Offs when No Motion is Present
100% Passive Detection Methods –
No Interference Potential from External Devices
Ambient Daylight Override Mode Increases Energy Savings
Configurable Time Delays and Operating Modes
- Blue Locator LED when Lights are Off
Multi-Gang Switch Replacement
Many residential and commercial building spaces contain multi-gang switch locations (i.e. locations on the wall that have more than one single-gang switch devices in the same wall box). The SENSORWORX solution for these applications utilizes a wall switch occupancy sensor and one or more added “sidecar” wall switches that receives necessary occupancy information from the adjacent sensor. Each unit can be configured separately for Auto On or Manual On (Vacancy) operation and time delay. Most conveniently, this solution enables adding a standard multi-gang decorator switch plate in order to provide an aesthetically pleasing appearance without any awkward and conspicuous blank wall plate sections. Additional sidecar switches can also be added to create 3-pole (or greater) solutions.
INBOARD / OUTBOARD SWITCH REPLACEMENT
Many older buildings have fluorescent light fixtures wired for inboard/outboard control by a pair of wall switches. Retrofitting these wall switches with code-compliant controls is attractively done with a SENSORWORX 2-pole solution (model: #SWX-102 or SWX-122). These two unit kits contain an Auto On occupancy sensor and a Manual On sidecar switch that work together to meet the required partial on energy code requirements.
BATHROOM LIGHTS & FAN
Bathrooms often have separate switches for lights and ventilation fans. In some cases two switches for lights (e.g. vanity and shower) and the fan are all contained in the same 3-gang wall box along the entry wall. Retrofitting these switches with a SENSORWORX wall switch sensor and two sidecar switches is an attractive and energy efficient solution for providing occupancy control of all three loads.
2.74”H x 1.68”W x 1.39”D
(6.96 x 4.27 x 3.53 cm)
Not Including Mounting Strap
Single Gang Switch Box
120/277 VAC, 50/60 Hz
MAX: 800W @ 120VAC
1200W @ 277VAC
CFL, Electronic/Magnetic Ballasts (Fluorescent)
32°F to 122°F
(0°C to 50°C)
Indoor Use Only
Sensors can be used to meet ASHRAE 90.1, IECC, & Title 24 energy code requirements.
Common Energy Code Definitions:
- Occupancy Operation: Auto On/Auto Off
- Vacancy Operation: Manual On/Auto Off
- Partial On Operation:
- 1st Pole Auto On / 2nd Pole Manual On
- Auto On to 50% / Manual On to 100%
- All Poles Auto Off
30” to 48” (0.76 – 1.22 m) recommended mounting height
Wall to wall (~180 degree) coverage
Small motion (e.g., hand movement) detection up to 20 ft (6.10 m), ~625 ft2
Large motion (e.g., walking) detection greater than 36 ft (10.97 m), ~ 2025 ft2
Overlapping acoustic detection of occupants over entire coverage area
Advanced signal processing filters out nuisance noises while not effecting overall sensitivity
Test Mode, 30 sec, 5-30 min
Both master wall switch sensor unit and sidecar switch unit in 2-Pole solution have independent time delay
Ambient Light (Daylight) Detection
Sensor holds lights off when ambient light is present
Manual threshold levels or auto-selection of threshold level
Disabled when in Vacancy (Manual On) mode
When enabled, this setting reduces the sensor’s PIR sensitivity for initial turn-ons in order to eliminate false on caused by reflective surfaces like windows
Unit returns to full sensitivity after initial turn-on
White LED blinks upon occupancy detection
Blue LED serves as a switch locator when lights are off
- LED functionality can be disabled
SENSORWORX wall switch sensors are intelligent devices that provide both excellent energy savings and enhanced user convenience. Users can choose from several pre-programmed operational modes that best fit their preferences and applicable energy codes. Note that both the master wall switch sensor unit and sidecar switch unit in 2-Pole solution (SWX-102, SWX-122) have independent operational modes.
Manual On / Automatic Off operation. Lights can also be switched off manually. This mode provides increased energy savings but requires the user to initially turn on the lights. Models SWX-103, SWX-104, SWX-123, and SWX-124 default to Vacancy modes. Sidecar switch units (SWX-831-SC) in 2-Pole kits also default to Vacancy mode.
Automatic On and Automatic Off operation. If lights are switched off manually, the Automatic On functionality is temporarily disabled to allow the occupant a few seconds to leave the room before returning to Automatic On operation. However, if the person remains in the space, the unit will stay in a manual on state until the switch is pressed again. This mode is the default operation of SWX-101, SWX-111, SWX-121, and SWX-131 models.
Automatic On w/ Exit Time Mode
Automatic On and Automatic Off operation. If lights are switched off manually, the Automatic On functionality is disabled for a fixed 30 seconds to allow a person time to leave the room.
Override Off Mode
Automatic On and Automatic Off operation until lights are switched off manually, at which point Automatic On functionality is disabled until the switch is pressed again.
Disabled Switch Mode
Automatic On and Automatic Off operation only. Switch functionality to manually turn on/off lights is disabled.
If lights are switched off manually, the Automatic On functionality is disabled until the space becomes unoccupied and the sensor’s time delay expires.
Unit works both in installations where Neutral connection is available as well as installations where only Ground connection is present
The unit’s two black wires are interchangeable (e.g., one connects to line power, one connects to load)
TWO SENSORS IN PARALLEL
- Both sensors must time out for lights to turn off (or both buttons must be switched)
- Recommended for Automatic On (Occupancy) applications only
EXAMPLE MODEL # SWX-101-WH
|PRODUCT||DETECTION||DEFAULT OPERATING MODE||COLOR*||PACKAGE COUNT|
|SWX||Wall Switch Sensor||1||Passive Infrared (PIR)||0||1-Pole: Auto On||1||White||WH||Single Pack||Blank|
|Passive Infrared (PIR) + Daylight||1||2-Pole: Partial On†||2||Ivory||IV||10 Pack**||J10|
|Passive Dual Technology (PIR/Acoustic)||2||1-Pole: Manual On (Vacancy)||3||Light Almond||LA|
|Passive Dual Technology (PIR/Acoustic) + Daylight||3||1-Pole: Vacancy Only (CA Title 20/24)||4|
*WALLPLATE NOT INCLUDED
** THE CONTRACTOR PACK OPTION (-J10) REDUCES JOB SITE WASTE AND INVENTORY TIME (AVAILABLE FOR SINGLE POLE MODELS ONLY)
† 2-POLE SOLUTION INCLUDES A SINGLE POLE OCCUPANCY SENSOR AND A CONNECTED “SIDECAR” SWITCH UNIT FOR SECOND POLE (REQUIRES TWO GANG BOX)
Wall Switch Sensors Popular Model Numbers
|SWX-101-WH||Single Pole, PIR, Auto On, White|
|SWX-102-WH||2-Pole Kit w/ PIR Sensor & Sidecar Switch, White|
|SWX-103-WH||Single Pole, PIR, Manual On, White|
|SWX-121-WH||Single Pole, Dual Tech., Auto On, White|
|SWX-122-WH||2-Pole Kit w/ Dual Tech. Sensor & Sidecar Switch, White|
|SWX-123-WH||Single Pole, Dual Tech., Manual On, White|