WLS912L Wireless Glassbreak Detector
INSTALLATION INSTRUCTIONS
Available Models : WLS912L-433
The WLS912L is a battery-operated glassbreak sensor, designed to detect
the sound produced by the shattering of framed glass. Equipped with an
RF transmitter, the WLS912L establishes a supervised, one–way commu-
nications link with the system controller. The WLS912L uses Dynamic Sig-
nal Processing* to provide accurate detection of plate, laminated, wired
and tempered glass types, while rejecting common false alarm sounds.
Specifications
• Operating Voltage: 3.0V (two 3V Lithium batteries)
• Battery capacity: 1500mAh
• Operating Temperature: 0°C - 50°C (32°F - 122°F)
• Dimensions: 135 x 60 x 35mm
• Operating Humidity: 5% – 95% RH, non-condensing
• Weight: 130g
• Low Battery level: 2.65V
• Input rating: 3V
(max)/0.2mA
DC
Maximum detection range
Glass Type Thickness
Minimum Glass
Plate/
1/8" – 1/4"
Tempered
3 – 6 mm
Wired/
1/4"
Laminated
6mm
Compatible receivers: RF5132-433, RF4164-433, RFK55XX-433,
RF5108, SCW9045/47-433, PC9155-433.
Battery Guidelines and Installation
• Use fresh batteries. Most batteries have a "best before" date printed on
their packaging or on the batteries themselves. Buy batteries that have
a "best before" date of two years or more from your purchase date
• When disposing of used batteries, follow the instructions and precau-
tions printed on the batteries. Many cities and communities have
collection sites or services for used household batteries. Contact your
municipal offices for information on the disposal of used batteries
• Do not mix old and new batteries
• Dispose of any batteries promptly, keep away from children
NOTE: Use only Energizer Lithium EL123AP, Tekcell CR123A, Panasonic
CR123A or Duracell Ultra 123 lithium battery. Use of any other battery
may present a risk of fire or explosion.
CAUTION: The cell used in this device may cause a fire or chemical burn
hazard if mistreated. Do not recharge, disassemble, heat above 100°C
(212°F) or incinerate.
Model WLS912L-433 is UL listed for Residential burglary and Commer-
cial burglary applications in accordance withe the following standards:
UL639 , UL1023, UL1610.
To install batteries
1. Remove the detector from its mounting plate: If unmounted, hold the
detector by its sides and push down on the top end of the mounting
plate, as shown at right. If mounted, press the detector in the direction
shown at left.
2. Install the batteries positive (+) side first, with the correct polarity, as
shown below.
29 0 0 5 7 2 3 R0 1 0
*Protected under US Patent 5,675,320
Level 1
Size (L X W)
Setting
12" × 12"
20ft
30cm × 30cm
6m
18" × 18"
20ft
46cm × 46cm
6m
Setting the Dip Switches
The detector has user-selectable dip switch settings as shown.
Dip Switch 1– Not Used
Dip Switch 2– Level 1/Level 2 Detection
This is a sensitivity selection dip switch which may be used to optimize
false alarm immunity for certain acoustic environments.
Switch 2=ON) provides a reduced sensitivity setting which may be more
appropriate.
Selecting a Mounting Location
The detector is unidirectional and picks up sound aimed directly into the
microphone and center of the detector. Coverage is measured from the
center of the detector to the point on the glass farthest from the detector.
Guidelines for optimizing detection and avoiding false alarms
• For optimum protection, the detector should have a direct line of sight
Level
to the protected glass.
2Setting
• Window coverings will absorb sound from the shattering glass. In these
10ft
cases, mount the detector as close as possible to the protected glass,
3m
either on an adjacent wall, the ceiling, or behind the window covering if
DO NOT
possible.
USE
• The detector should be mounted at least 1.8m (6 feet) off the ground.
• Do not mount the detector on the same wall as the protected glass.
• Avoid installation near noise sources, such as speakers or other
objects which produce sounds continuously.
• Do not install the detector beyond the maximum recommended range,
even if the AFT
in room acoustics could reduce the range.
• Application on 24 hour loops should be avoided unless the location is
unoccupied.
• Test false alarm immunity by creating any sounds in the room which
will likely occur when the alarm system is armed.
NOTE: Test the detector thoroughly for proper placement using the AFT-
100 Glassbreak Simulator. Other simulators may trip the unit, but will not
provide accurate test results.
Testing the detector
Perform the following
tests with e ach
WLS912L detector to
ensur e that it i s
mounted in the best
possible location.
Detection Test
1. Place the detector in
test
mode
momentarily press-
ing down on the tab on the base plate, as shown. The LED will blink
periodically to indicate that it is operating in test mode. You can end the
test mode by momentarily pressing the tab on the base plate. Test
mode will end automatically after 10 minutes.
2. Use double-sided tape to temporarily mount the detector in the selected
location
NOTE: The detector will not respond to the glassbreak simulator unless
the test mode operation has been enabled. To enable test mode, press the
test mode tab on the base plate for one second.
3. At the window to be protected, test the detector using the AFT-100
Glassbreak Simulator. The AFT-100 Glassbreak Simulator generates
plate or tempered glass sounds. Use the plate glass setting if you are
unsure of the glass type. Observe the following when testing the detec-
tor:
• If the WLS912L detects the sound generated by the AFT-100 three
times in a row, the detector is in a good location. If the detector does
not respond each time, relocate the detector and repeat the test.
• If the windows in question are covered by drapes or blinds, place the
AFT-100 tester behind the closed window coverings, and then acti-
vate it. If the drapes prevent reliable detection, we suggest that the
detector be mounted behind the drapes either on an adjacent wall or
on the ceiling.
• If there are multiple windows, or one large window, activate the tes-
ter at the furthest point on the glass from the detector.
The detector is factory set for Level 1 detec-
tion (Dip Switch 2 = OFF). This is the highest
sensitivity setting for the detector, and will be
suitable for most applications.
For rooms which are smaller, and contain a
significant number of sound-reflective sur-
faces (such as bathrooms, kitchens,
entrances, etc.), Level 2 detection (Dip
-
100 simulator shows additional range - future changes
by