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window alarm
1.4.5V 3 PCS LR44/AG13 button battery.
2.place the cover in place.
3.peel the paking of the alarm unit and place it on the edage of the moveable portion of the ON/OFF switch side away from the edge.
4.peel the backing of the magnetic sensor and place it on the edge of the oppsite side next to the alarm unit.
we have similar window alarm unit.
| item | YL-323 | YL-323A | YL-323B | YL-333 |
| type | popular | sharp size | two sound | AAA battery |
| battery | 3XLR44 | 3XLR44 | 3XLR44 | 2XAA |
our factory is very big to make small alarms.
we make alarm,doorbells,night lights,nicrophones,mosquito killers......
following are our catalog





