smart design vibration alarm,can be take along with,operating easily,the function is well-found:

1,password arm/disarm,password can be set arbitrarily,insuring operate safely.

2,double emergency alarm function.

3,the time of entering and withdrawing pre-alarm is in your option.

4,it can detect the vibration signal from which have no direction and any angles.

5,sound and light hint,alarm with whistle.

6,password memory function while change the battery.

it takes 3s 7#AAA battery supply.
Size:6.5cm¡Á11.6cm¡Á2.7cm
provide OEM.

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