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The key to a better security system is the WT4989 2-Way Wireless Key from DSC. The WT4989 offers great added value to any security system installation.
Features
Backlit ICON display
Built-in buzzer for audible feedback
Key tactile feedback
4 one touch function keys, programmable for up to 6 functions
Status button indication
Wireless key keylock
Active alarm indication
Water resistant
Multifunction clip
Nominal Battery life - 3 years
Compatible with IMPASSA and PowerSeries (via TR5164-433)