Alarm padlock with siren has built-in sensor that can detect vibration and movement to issue 120dB alarm sound to warn the thief.
Designed with heavy-duty forged stainless steel for increased strength and high security.
an be set to two states: mechanical lock only and alarm lock,very easy to operate. The Surface has been processed by roasting paint, which is smooth and without hurting hands.
It is very convenient to choose whether to open the alarm function, simply rotate the key to indicated positions