DSC wireless key WT4989

Model WS4939
Type DSC Wireless Controller / Transmitter Duplex (For ALEXOR System Only)
Other LCD illumination
 Audible button press confirmation
 System status rendering
 Active alarm rendering
 4 one-touch function keys (programmable up to 6 functions)
 2 double-click keys
 Locking the keys
Operating distance 150 m
Operating frequency 433 MHz
Dimensions 40x75x16 mm
Operating temperature -10 - +50