DOOR STOPALARM
put the alarm behind the door.
when the door is opend teh alarm will sound at a 100 db loudness.
3 pcs AAA battery.

4.5v
3 pcs AAA battery
100 db (30 cm)
Open the battery cap and put in the batteries.
put the alarm to the ground of a door back.
Switch on the alarm.
When the door is opened and touch the metal plate of the alarm..
the alarm sound will starte for 30 seconds.
following is our similar larm use fir door.
| item | YL-161 | YL-151 | YL-152 |
| type | door stop | doorhandle sensor alarm | door shock alarm |
our factory is very big to make meny electrical products.
we make alarms,doorbells,night lights,microphoes,mosquitokillers.....
following is our catalog:






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