open it up,one screw,remove the battery,get new one,connect it up,close lid key in your pin number,
when you remove the screw and open the panel the sounder will go off just key in ur pin to stop it,be careful you put the red wire to the red side of the battery,and the black to blacl,the 9450 is very old,
dp not touch any wires apart from the battery ones,because there is 240 volt present
gts
October 2011
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