Transcript Slide 1

The NightLite Sensor
Introducing the NightLite Sensor
The Occupancy Sensor that is a Night Light!
Perfect for Hotel Bathrooms
 Many people leave
light on all night
 24/7 lighted pushbutton provides
enough light for 2 am
trip to bathroom
without having to turn
on bright overhead
lights!
 If occupant wants to
turn on overhead lights,
the night light is the
On/Off switch.
 Passive Infrared (PIR)
detection turns lights
off if no occupancy
NightLite Sensor (WSD-NL)
Technical Features

Passive Infrared (PIR) occupancy detection
provides coverage up to 10 feet for small hand
motions and 20 feet for walking motions

Draws 1/10 of a Watt at 120VAC (7-10 times less
than other night light devices

Can control lights and/or exhaust fans (1/4 HP
Motor load)

Patented either/or wiring for hot and load wires
makes installation simple (neutral & ground also
required)

No minimum load requirements
NightLite Sensor (WSD-NL)
Programmable Features
 Device contains microcontroller “brain” that is
push-button programmable
 Default operation is Auto On/Auto Off
 Manual On is user selectable
 Optional Reduced Turn-On Sensitivity Mode
(eliminates PIR reflection off glass
 Switch can also be disabled
 Off time delay is factory set to 60 minutes, but is
selectable up to from 15 minutes to 2 hours (in
15 min. increments)
NightLite Sensor (WSD-NL)
Physical Features
 Mounts to standard switch box
 Fits next to GFI receptacles
 Vandal resistant lens
 Conformally coated circuit board provides
corrosion protection from condensation caused
by high humidity (steam) in bathrooms
 UL/CUL listed
 5 Year Warranty
 Made in the USA
How does a PIR Sensor Work?
Answer:
 Uses Passive Infrared (PIR) detection to “See”
 Sensor detects “Heat in Motion”
 You look like a moving 60 Watt light bulb!
How does a PIR Sensor Work?
 Two wafer thin Pyro-Electric elements are encapsulated and
positioned behind a Fresnel lens
Lens
Detector
 Each lens segment generates a pair of collector beams
 The distance behind the lens is called the “Focal Length”
 The Focal Length determines the size of the beams
How does a PIR Sensor Work?
<<<<<<
 When People Move they Enter
and Exit the Beams
 The PIR Detector then “Sees”
Changes in Energy
 Body Heat in “Motion” Turns
On the Sensor!
AUTO
How does a PIR Sensor Work?
 When People Move they Enter
and Exit the Beams
 The PIR Detector then “Sees”
Changes in Energy
 Body Heat in “Motion” Turns
On the Sensor!
Bathroom Application Diagram
© 2013 Sensor Switch