
WLS909-418 
WLS909-433
Wireless Key
OPERATING INSTRUCTIONS
The WLS909 wireless key allows you to arm 
and disarm your alarm system, as well as 
perform other keypad functions, from a unit 
small enough to keep in your pocket. 
Together with your installer, you can decide 
which functions you wish to have accessible 
from your portable key.
To activate any one of the four selected 
functions, press and hold the appropriate 
button for two seconds. Your installer will 
indicate each function by applying a circular 
label beside each of the four buttons.
four 
option 
buttons
Signals will not be received if the 
key is not within the range of the 
wireless receiver.
Some of the most commonly used functions are as follows:
Stay Arming
Press this button to arm your system in the Stay mode. All perimeter zones will be 
armed, such as all window and door contacts, but the interior zones will remain 
inactive, allowing you to stay on the premises without setting off an alarm.
Away Arming*
Press this button to arm your system in the Away mode. Both the interior 
and exterior zones will be armed, allowing you to exit the premises.
Disarm*
Press this button to disarm your system. You do not have to enter your 
access code when you use the key to disarm the system.
Fire
Press this button to notify your central monitoring station of a fire condition.
WLS909
key 
ring
Auxiliary
Press this button to notify your central monitoring station of a non-medical 
emergency. Please discuss the functionality of this button with your installer.
Panic
Press this button to notify your central monitoring station of a situation 
requiring the police, such as a break-in.
Other options are available. Please discuss all WLS909 options with your 
installer in order to program the best possible combination to suit your needs.
*NOTE: In the UK some restrictions may apply. Please contact your 
installer for details.

Replacing WLS909 Key Batteries
To replace the batteries, remove the screw on the back of the 
key and carefully separate the two sides of the key’s plastic 
casing. Remove the old batteries from between the two metal
–
+
clips. Insert the new batteries according to the diagram at left 
and reattach the two sides of the key’s plastic casing. The 
WLS909 requires three batteries of type LR44.
NOTE: The polarity of the batteries must be observed.
LIMITED WARRANTY
Digital Security Controls Ltd. warrants that for a period of twelve months from the date of purchase, the product 
shall be free of defect in materials and workmanship under normal use and that in fulfilment of any breach of 
such warranty, Digital Security Controls Ltd. shall, at its option, repair or replace the defective equipment upon 
return of the equipment to its repair depot. This warranty applies only to defects in parts and workmanship and 
not to damage incurred in shipping or handling, or damage due to causes beyond the control of Digital 
Security Controls Ltd. such as lightning, excessive voltage, mechanical shock, water damage, or damage 
arising out of abuse, alteration or improper application of the equipment.
The foregoing warranty shall apply only to the original buyer, and is and shall be in lieu of any and all other 
warranties, whether expressed or implied and of all other obligations or liabilities on the part of Digital Security 
Controls Ltd. This warranty contains the entire warranty. Digital Security Controls Ltd. neither assumes, nor 
authorizes any other person purporting to act on its behalf to modify or to change this warranty, nor to assume 
for it any other warranty or liability concerning this product.
In no event shall Digital Security Controls Ltd. be liable for any direct, indirect or consequential damages, loss 
of anticipated profits, loss of time or any other losses incurred by the buyer in connection with the purchase, 
installation or operation or failure of this product.
WARNING: Digital Security Controls Ltd. recommends that the entire system be completely tested on a 
regular basis. However, despite frequent testing, and due to, but not limited to, criminal tampering or 
electrical disruption, it is possible for this pr oduct to fail to perf orm as expected.
TM
© 1999 Digital Security Controls Ltd. 
Printed in Canada  29004684 R002