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God quality burglar alarm lock alarm padlock upscale antique bronze padlock padlocks
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A lock II with, lock Rod a direction lock into lock experience alarm another direction lock into lock body both does not alarm, by Xia lock core that locked and heard "du" of a sound, in 15 seconds Hou entered alert state, dang lock body was vibrations needed delay 5 seconds Hou again vibrations that alarm, thereafter continuous vibrations can continuous alarm, alarm sound ended 35 seconds within no vibrations is returned to original alert state. If they WILL stop the alert. When the batteries are about to suddenly stopped when the radio alarm to remind owners need to replace the battery. When replacing the batteries, first the locking screw at the bottom up remove the upper cover can be replaced, it is important to note the battery's "positive and negative".
